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 0x894b94e754f4a63b1dd58aec9b096778b0e8c87df1fda24168388a1168609f27. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad4f90c6-da3d-4c3c-97f7-ae1de89ca012.json and https://artists.proofprofile.net/proofs/artist/ad4f90c6-da3d-4c3c-97f7-ae1de89ca012.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 0xdf023fc5d4365816df65a1666213f563dfe43789d6aaf1ed76fa37c943240a32. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ESA012255452.
El influyente (Puros corridos) [En Vivo]
Puros Corridos, el de Carachurio (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe690898d867313a5e287af18d019bde84c5bbadd86f0cb91f88c3580a8f48301. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZSYP2255311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182b1459cfbe68f4e8b07d483ed84ef7d7a16f1309fdd7ac3e8d4ae9a1fe8809. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZSYP2301337.
Fiesta Privada Hacienda Vieja, GRO. VOL 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb37e23deb31a102b3a78332a741f08464be84e2751de7f27eb1886db4149d4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTLA2344132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5631d5ee8bc1250c2f9b4d23d1209ee1ead17502bb1f72c1f9ac033ffe3007cc. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZTLA2387408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc267149e8b8bdd686e749097a037a822d7322bb5862192d988a9a065c95dca. 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/QZTLA2343754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd20561f58d302b6c841001c63b3ff485c1db3c9212da5eb84c5a4e230b242e0. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZQAY2387182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422391c01e7422cf3913210a296c9e959b08d293af97101568a83ef084be0fb0. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZHN82425524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe2d511ed72708a113af63bbb5c0331f8d1225882e6100692708f19282f242f. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T13:02:49Z), 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/QZK6H2418383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada2a5aa71aee7fedd9df2e9d8988ceac5354613786c17711f73a9ffc80e2937. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ772422497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0986ecc7d1cb3bf983c249c10f8d14260daac4292f72d67dcc53c7843b1848. 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/QZQMB2108396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9a175a8364b66307d8a3922607d810c23585433970dc4940d9a263a879e269. 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/QZZ7V2434807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87aee0f53e09f806432ae4d701237a957971a195c97007ff2806161246c746f9. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:42:45Z), 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/QZHN52595798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236ee70e2e9c31e64dceb8d11b6d35860a7bca91a21b249de2ebd33d91c23c0e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:23:35Z), 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/QZHNA2555887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e583b7bbc19ba53f0ec4d1ed41bce779440779366881e5b7ca9b1055920c4b6. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZHNA2555888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbd6779b3fdc75c9fc810e5508a214d5b713dbe9a8c6d595fd5f7bfd57b6b4b. 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/QZHNA2555889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c888187d817fad6b131c09f9824b72dd53b7fd3974cccd7c7a7fe6cca6a3343. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHNA2555890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cae99d069bee06feeda7fece77b48dd9209e52b2ec11fb3d9c94cf7c19a99a. 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/QZK6K2598092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0d9c6f0fa396704ec591b8260a70d78be2efa444c8248672a4362b477457a2. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZK6K2598093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc787e693affacd37aa5071638094be7bab090c83d2a8e0b32f3fba24826b5cd. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZK6K2598094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42af3ca33a60f869bbec1a2d30d0c0b08d4e00598a8d2797d281dded82c8e6d1. 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/QZZ7X2553355.
Puras Pa' pistear (Octava Tanda) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177297eb24c1c6c34c93480f21505aa9270bb53fb00d1c2dc914d6b5e68d5c6b. 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/USA2P2439287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7061a53d167aafe156636bbf1f2f1c93f740c112c94672cec6524a790023b3. 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/USA2P2439288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd4f0afb42fd2ce06049cec5c8e2d2c6075f1396df046b1d825d6539709d658. 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/USA2P2439289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dac1f2c60807a987f053ced8cab46f5aa67ff927d4158ff0846611f435b3fd5. 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/QZNJW2423895.
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