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 0x56732d480f2c592282f0dbcb34496427cec14586fab861f00fb58e4bac9fd22d. 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/d6de29b7-4145-4e22-9f35-c1de424b4434.json and https://artists.proofprofile.net/proofs/artist/d6de29b7-4145-4e22-9f35-c1de424b4434.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 0x21b2b157ad3f56bc63e666cac3ebfcb971036e0d86ae2d754665bb4a4077dd45. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USFP71341901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac54dcd32d805f3d873cc2482f24259c779dcf3acd999dd849d98d884a49859c. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:21:40Z), 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/USFP71341904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7c3fcbb05eeebaaa168fd181ba4598fb1a5545b25baaf160517cb6ee71526f. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USFP71341906.
Love's Crushing Diamond (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4914f33f5603d1554c9b441e662bcd4cbad2fd6e8dbd8d96e6f864ee7d82cbba. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:26:17Z), 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/TCACF1566444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd861d2befad997435d715f4c7bc2cf82858e0fd19b11729660278cabd3ebf9. 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/USQE91500251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d17010515c22e47f1a80f1a874082a3f0ed9aec8b532e716f047cd703fa5929. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USQE91500258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04484a910d70d5030de1a31fcd667f1c55ac16d0fd94bf9feee484d83679aeb. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USQE91500259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6912015a41c2a2e6a8c2e78c5ebac9f9c0da09d3db79e43ed2709aa887c3a56. 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/USQE91500260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7ae00e307675c81277f8d0fedf168d67e4b187b5b9483d003a656875fc4924. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/USQE91500262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e75a8aad226a75b6485170213fc2ef354c920ff6d574d0e94db0e12cdd10b9. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:22:04Z), 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/USQE91500252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6a6baff6ad5b747801f6b7456620a6df84eb9ae01e9c475b02c86116d22c83. 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/USQE91500253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c8a251bce89facdc8410822f1085d35f00177ffe7c1596a3dbec24edd31ae3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USQE91500254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739870049298a2dfa4f2bef62290bdad80a4ee9c351d617bff06fea882c934ca. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:09:45Z), 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/USQE91500256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72ebd772c740c27d6bc5892d1596390b6fdda688b654208f4ba5c4911ff247a. 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/GBKZV1800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc5bb9452254694fca57d6d6157e8142b09b1f355f9aaf4bd4baac1430012e9. 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/GBKZV1800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef26956f532a921a65cb3b1498afd852071a618af9e318bdabe83fef6e9f651. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBKZV1800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7499567f57455367036936ef22639ea3ede1503ade462b78b6e7c1f3a18afc50. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBKZV1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d949d461d82f6166b721570cf1a116b3f7e70ef2f759c995906edd456bae1f5. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:05:40Z), 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/GBKZV2200243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6985db1f11e9cca4011e50369a54205ee2f429c7671f55c1ea4f65ddfa44976. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:01:30Z), 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/GBKZV2200244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a6daddfda6c14119daa68d01bb7352c4051adc5c1831b06de08ffc52e36b2d. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/GBKZV2200245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a178df86a5bdcab434e98ea62589c4ab726710b7233c945d3bdf8693891734. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKZV2200246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf26160caccec11a51df9f27c43b7adcf81ef5093d764645dbcf7f6b7463fcee. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBKZV2200247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbb6d756d6987364124e28f086c8d4847f3d0a3737ac2f7509887cbc52dfbf8. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:38:39Z), 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/GBKZV2200249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe708923b423ccd6bfba738f23a7d79a8b6bf8843f0208ebfb58368e31fedac12. 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/GBKZV2200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa158470c0655439d453d68b5f115935eb23112d1b83d77962135dae03848f0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBKZV2200251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d83258a99a6b985c7ab06c5c615476a6b4912440a75f32eb4ac9718da95d769. 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/USZMA1400053.
Journeys - Escape. Sleep. Relax. Repeat. - Season Two
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5e7545128bbc2ecbf05d378b5a17ce642539e0e7a389e6e9b7a6d3065c1581. 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/USFP71341903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1622c95c43c220aad8a1cdcb16d66e8611fa1a3911073a42cee579672e904c47. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/USA2B1801111.
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