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 0x4bb0648cab22b84198f8e7f6895745e53cff110f88c3d7fe3db3e9fea973336e. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df6ed7ab-50cb-40d1-84a9-54cce41fa4d0.json and https://artists.proofprofile.net/proofs/artist/df6ed7ab-50cb-40d1-84a9-54cce41fa4d0.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 0xcd012a9b5dd4d56726a845b56f88b036bca5c4772af0c75812e5018922db9d2c. 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/ES68B1800152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca259214529d867092ae182d032f6b352dd44ed0d3a761ea27ce75da11aee97. 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/ES68B1800129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd38189da532080e5014443f12f9189d9f8534fc39dd8c657c9f2f306cd9b69. 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/ES68B1800154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc318d142899ca2ac5f1d9b6fb156021ac97147fbfb624ccdc2f788ea78fd359. 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/ES68B1800155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178505a32418525c2591b87cdf5e064865151ed55770675a824c5b9286b82702. 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/ES68B1800158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d1877f0eb8c30cf0833f3472b7b79ca0a46bbafbfceb675e3e76507eaa9d99. 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/ES68B1800151.
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 0xf6aa86d9a99afd41ca50fb36413a5ff65de36a76ae832999e190dc6555501f5d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ES68B1800153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0521fcf08be319ba1a86d704aa9f77e6896a7f3e3d8506b8c5f13d0b62d6f062. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ES68B1800156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18e74c1b40f1eae4cdad28873d00e17e3e0217068c40d62fda0d275464a2e47. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/ES68B1800157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2dab062818149f32c11b8514548b884ea338a835b1faa7a39a5e5b281c8a87. 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/ES68B1600091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6056d201933e1e65f62d6731236a8e731cbad6bd496f6cbc9a21846c93ee41da. 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/ES68B1600092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df721856adb7fba8267e0d421029e1d76bdfc9306628a8a4b1c8d3fa3a92f24. 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/ES68B1600093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccaf75bbb80486000fc490a79ffe884ea708f8fd966a6e34599be2178a342ea9. 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/ES68B1600095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15eb471b4d2360b751e9abe9415660fb3a2b52f3f1f75ebdfe30c8a7d7580600. 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/ES68B1600096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bba8f03ae3a6ac32f0011b59ed5667511ecc64b96afae1d640caf850214ae5. 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/ES68B1600097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970a698b7adde852f4208c3b4ef082e2727d14a56e7a6143288ff7003b1d1a85. 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/ES68B1600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6be91b49e19a9c8d2d5b39177a3abd091d56513ff7df25e88ca311194679253. 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/ES68B1600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6429762e1c6050d921b167c8122bd30aa633dc54eda9989d15f0bba90b730703. 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/ES68B1600102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cce686c2fcdcdc5eb86693aa83f0425abc9b7de396c06c37d247c501d9f0ec0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ES68B1600094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d4c0e619b572465369520a314f1a939ebe8b1f8e60b363d4bc363be5b6f0a8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES68B1600098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba65b91378a0604736f8da3af1993b368b408030a7cbac24901fad5d0d5f51d. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/ES68B1600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad0576e2b1850dd3e7683c4b7311182f76d4d14b7afbd61b46ad67e68a277f5. 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/QMDA71534604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd4d997ca9863f6d85ee58c4f242a1bd20bdd85c972bfb359f70f48b2dd003e. 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/QMDA71534607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9854f7535a6e61bc95b73062581dee1706deffca6c334a6558d12ed819e9bfaf. 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/QMDA71534609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ab88a61550ad1a750bce558a54cf24b729f48dc3eb1412adaafa74a878bc22. 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/QMDA71534610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5badf5b01df348a88c0be32543fb2df93199ee3a71ea30ce26271619411c4eab. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QMDA71534606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16cedca2c5590be1abb7cd6fc0d7a1c9b3fd03e7a6cba7450d7bd4b3d09443d. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:51:04Z), 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/QMDA71534613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbb2257d5aeebca6fbc0a967448b4b4931fde95d31d65774836c79792cf621c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMDA71534605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c8111aea375f81da3827ce607fca77a4f147241832697e69d1382aba6e4a43. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/QMDA71534608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ed4de53a1fcd388ee601c89cb01b0961201856dc7ef299e1d88e9f4949e585. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QMDA71534611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d0db64bbf18d9cbed1c118deb9eec7faaf40740fe7670963461e90566bcc9a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QMDA71534612.
Cómo Apretar los Dientes / Matajare 9 / Otras +
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fd916eefdc6223a6aafb2934e1473189850c5a849c9af2a3b8e0f7968af05e. 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/ES18C1000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc616ce167d6974e67e461a6c213b5f5b30662cf0484a25a63f0823b79f6df6d. 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/ES5301764561.