Alain Pérez (born April 20, 1977 in Trinidad, Cuba), is a Cuban bassist. Alain Perez was born in Manaca-Iznaga, a town in the Valle de los Ingenios in Sancti Spiritus very close to Trinidad. His fath
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85581195a069a0997e28a422d41a850a32b2fcc340ee87a54ceb9df72f2a7147. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bc11a29-9332-4ccf-acf5-89d204b8d557.json and https://artists.proofprofile.net/proofs/artist/1bc11a29-9332-4ccf-acf5-89d204b8d557.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1537f3639ab5a59ca53accb53df0f5d29d61be59e75a214d803482cf19a9de49. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:54:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES34G1400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c8665bd72f4fd3fb039cc1f04adb5abeb654c6059bb6f4d99016e77001e373. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA370654641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcabb813c21f07cb0a5ec8cc13425ae0e9f2c38e194c33551bef9be2a36d4d9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA370654644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d756197322311c78d9a8513b7f62b5221f7ab3441be3bb45bfc31759afb0f7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA370654646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1413a1d63e2d94324dbc4c2b1b88d34fa334521b24e2548b71c4a7bd28530cd1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7210919302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11b3af2d0901386cd248afbc534ee9127f85add639457b2587e98f8ead08d24. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7210919306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca36f2165f05411282aa1378ffb8ae4e0c2b7154caeb989e8954b4478897980. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV351458618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea304b392bd928c72de1b3f83a4259b2cfe89b1ca94ef8405f1f0a3299e7f71. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV351458620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7f315da4fc6955d0cdcf15cef48a6aa7d6ddb02c6db3fff302497eccaf23e7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV351458621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36685c7ae4aab5b60b7f139be39ac85610162f54482768d6dfb2b91bc5dcfded. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:42:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV351458624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94ccb939e461e722816f242aef86dab62261ad03e053ef8e1bbcd27e204ec18. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV351458628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567fa2633adb1c76e68becdbb40b481430984b35ec096760764ca1f31596553d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41850412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5450f911ca3ae8991de3c0e76910e55dfc631fe3150b4d4c0573cc394ea288. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41850416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29103b6a6e16c3d0d076bbed716efdedd8fcc397719fd77b0f7a56928f699d9e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41850417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc878dd54df29b34f202b07d5f3d6b9e65aa7d1403748e06b56d9ff392ddb0d53. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41850419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcabc48fc546f016f7d0b71c2f5a7a0fbeb46c2fb25188f709dfbd2a848789c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1839915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08ed78aae4338c57dd593a15be2f36817c988f1dd80379fd0d037b5f5dd2c86. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:34:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1839917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1fa37df9bb0d12f9559161e84cdc3dec8f811008d5e5a9488e2d9f063f0b7c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1839918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3658918cc4e29b0cacde9d8361a71197a1ab0eb53143efed0f3253ba22e8a9. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1839919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ffd482e6acdb4969be4887b456eba649dfed3f7bd37e8eafb90d844639840b. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1839922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98494e61936ecd29c901f94bb43297a218b1af8f2d67c6878bac928af737da3c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1839923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d0e2e91104febad6fcbeedbd427d4bf8e56ad4ed8d69e7db570783e7b10dbe. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1839924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc1a67c8d7f41ce9be5eb09024a4b4fce5604165b2c6b2e1ba8dac8f776d40b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1839926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08876002d653ef35d6466e5071d542de5b0ff9c549e3a1510203017943020f98. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2201722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf7468ab4ee8957abb7cce3e0f2061d61d10ded9eab7b8dd1615ee332013f7e. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2201724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4255f05d820dab77c3a9130dc8353a7a5d0c07b9703ab55057a0915bceaa0322. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2201725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32701ea93c36948f66f8596636c42c3c32491d264d18a1d18785c2662f257274. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:59:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2201726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d62d2d103db036faf9f22548b98209b1ff1bf9f0888db53d5ff372659c9539. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2201727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220169fab15a13e6d0457a2cf391ff70b245787857f4fb68528bb31670e3bb96. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:08:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2201731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe80cd7ae45732b8e3c7cd718878d3e351528588caca7c87f4d609c53a445d60. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2201732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe64baa7db9081a06d97ca9813b855965d81a4826fe5dafb5bd59896f709312. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2201733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dee4e681f2e61b806a054b79338a1954f0bf06e350460ec71cfa16d7d54e7f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012002301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b6e882900b67239f0305c27a78665da61ccb726ebb4470d79e036b5b9d79ef. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012002302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048a4e9d62be74a985f7d48560807234f196c33f182e5ee95ae339896bb64bb4. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012002303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e257c62e5f17faf6d6e9e88c496c8484e40b8d418829ddb9345f3028b53f948. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA011912301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773f1389ca611aefffa37551672778d07720fe971350fd2cd67dca215f017dc4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012002310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48dd9a62e161fdc7adc3797fcd9857077cafe23c315e67736d1d987e604d713. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012002311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4f3e4c081a7aadb6f628082afd4201f2917706cb4d81c80d8bc51439b66fd0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054a07c794395049c5f40237e1fcee21232e24f6520517e68decebbfb6ca797c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7405a620ca9b28d9081b691917f7a64c93b15cfbf660e2b0d4c776275a11a0cf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a392ee9f6a4e5bf7f869e00ac52132181f176ef819310f1c59c4c98c4f69e06. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012100204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6b4b1e651f004425067192edfdbb21655a1532abc618b273c56d0a137ce5ce. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef55f4eeeeaeeff3343faa247879db6e82f1087f612e8493f732123cbd9a68c0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012100206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424146baf4299dfe6861ef350820c33ee4c7c084afb465e7d945dc751835a25f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012100207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a8e68c8d3dcab58afb0be23ab1a5d02036bab61c4535bb547088788680e120. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA012100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68ffb2b6aba26636090dbe25334f93b1d9f9e10340be99c7d6f2b2ad36df5f6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2418496.
The Man with the Hat and the Tan (ManHatTan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56c574f37937758b8b0ddf9a26845f41dede6cdc8539d611667311449735ab2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ2258537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6beda2115e059a4fd74264d713010289583a7c809eb87549e65308b2837da7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAAY1158454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174d2dc3416077aa03cd19c425d545bd0917419331e69264353db27cf167b477. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUZ011906109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80048c3e26ca8d2bf231081bc938b5c1f96c8bf49b4e4fb59f73af3d4556bcfb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES21S2100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80048c3e26ca8d2bf231081bc938b5c1f96c8bf49b4e4fb59f73af3d4556bcfb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES21S2100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8800fac9104be479b2084fba1dc1042b6b2adcf6ba5816590b3897feb148bbdc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA020213793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf65cb5c3c3cb01e97357e3c761e94dee2e3140e2c0b45447a2138dee1259765. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITF251100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143b87678a5544ff3cdb44d497589512cd4be3f59f24b0ed6f46f00d9717f9a4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA011913101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bd691714a479c0957dfbd329c69f9fd09dad8a439de7291d63389d2045f2e4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA011913104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e9077458b4d0b08b7a984be7c4f7ff9f7b5f26d747b03311fc305c20eb5243. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA011913107.
Manteca 2.0 (An homage to Chano Pozo, Dizzy Gillespie & Cayo Hueso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3c69b81e457f2411bf6d231800b8290c3a7ff3a4b65c8218f6b1cc7f2c5fd7. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTV32384359.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Alianza Musical de Cuba: al Son del Caballero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cb0a3e79a708dd188d4d1aa27623dc0ae98c35d78a3399a728bcb6af7dc958. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CUA022114768.