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 0x2b6cc6af47c56013f571b234c33be43aeff8b54ce12eef175f9dc51407bcd713. 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/6737de0b-e608-4e74-86f7-f58cb35ac05e.json and https://artists.proofprofile.net/proofs/artist/6737de0b-e608-4e74-86f7-f58cb35ac05e.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 0xda18d5432da21de64534b5ee3b16050eec1625aa220ba1c84b1aacb7db88dc3d. 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/QZFZ72166900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4954c67498189de9eb0c242ad75b3c1e35b8614151eca67921bf51a5a039493. 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/QZFZ72166901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea6053c43ba549ec5fe13806dbe2fcb67709a8133f3a31795fd4219153abaa9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZFZ72166902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9fef7e0a0c4f34c9cc142537bb238f81022b5f38f0beb3cdf9e2a8d64df8f5. 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/QZFZ72166903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7412c6ad3568d1a103405e7462471d77e18c7b86d29fe9c61a881e58922e8b4b. 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/QZFZ72166905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e4d85f4058f94723cd1670b0e58ae2c5715f3f102ffbacab6b0c7072b5d4dd. 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/QZFZ72166906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0708b5c27bc66b4967ee65288a3fb9ad8e11abdad3c56bd70995389ae4c4f15. 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/QZFZ72166907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c310a4f40b174d93a7e31312c0b1b3e10ce6658adb99ddf6ae0aa967ae5e52d. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZFZ72166908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22eae881592c9859c034bc1be790921aa559714637936f285c33b5d93de6e33b. 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/QZFZ72166909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0396fad6d47d305b64fcdec0371c7c979e96716e72e41677f17455c687ec993. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZFZ72166904.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd1d7fbcc8d8be2065e96925ba4ff01a5a487fbccc6cf59c34005cc39ae8f8a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHN42236218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea250beb3c484d083b8463901879e4db6a68d98745b3f431dc89edf7e524f0f. 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/QZFYZ2241519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed9f71d25a1a287b8788d2d00bdc84ca49c0d38b0e4418249cfed44c7f1a477. 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/QZFYX2206237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95e06d9703067385dfc84c236b80cd793af79dbecdc040df0eb799328837453. 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/QZK6J2133645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1cab35f2689b79cc3ab9e7c9cd09f88ff557be0145fb8f866e4a43f2ae6368. 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/ES19G0900187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e84f39afeb414d77cb91dd91cbeff1d5271be875f7a217debf7f99a80706e7. 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/ES19G1301846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801614f496ee443cb0ca78973d0e3a0cf2960248db58f15203515ca0e4f096ea. 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/ES19G0900285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad18047239f933c21bcf7b963375b39209858b31242af734f8853681686eb00. 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/ES19G1100330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dae769b28035b3861bfed4613345d2dccc069b7eeba87b245342420c7446b7. 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/ES19G1301847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d3630b90d2103b482819a6cbf425c857b6bf4c733a20a91b5ada905db3d45f. 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/ES19G1301848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9eb1429eb15a5af77446f5e6d633423ba0ddadd2a147f62fd04d412281f8c3. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ES19G1301849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc847b1c836e53b3434012a8e27f8819fdc43437070f2638dfc3468d4dde8c6f8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES19G0700287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedeb1e6aad59594b20d2237e90ffa11fc2ba13744ba429956b2ba9995c2252c7. 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/ES19G1100348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbafc54b97a0e2f35a155a90dbc6c8217a20aed83e28c7938664ba00cacc55c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES19G1301850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a09bc3798e5833a5202c311346e23b8a86f2b0fb6c3b4e964791c941f8333b7. 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/ES19G0900179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a76edadf3bf47f1eeef3e4acad2661d061767c56f091c21478a0ce55d99f1b. 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/ES19G1000314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2763755d494c6f05721d0395aa39c5fb8be64b89530e46291d9ee3dd499e3549. 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/ES19G1100340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd650e4be60db8e60d955707b6059a86db9cee10de24d666632e5104057b14817. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/ES19G0700231.
Grandes Orquestas de Galicia. Feliz 2014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2a1c9a65539e72ce7e4686528745fde71a806e388ed203430b86bb5d8465ec. 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/ES03S1300157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c594840dc68ac6ed6dd14c75d93d583d5c3096be9106a76e667347c8becf3d. 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/ES03S1000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90700fc1208ebf697a3eaee4cc5c1b02262d139c4b558ba44d37f065f147a69. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES19G0900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851e56c02c5ed1d3b91b1d439ab3e20653b56618d67b1b8891bfc6a4b555a0fb. 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/ES03S1300160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954a533737997a4653b6a79427ff076cca2a647c13b8dd403d1e53aee4e422ab. 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/ES03S1300232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb86a9a21cd11c8b68106fd21f43cab53da5b69fea9d80cfb185e74240111153. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ESA011846505.