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 0x98d61b82a59c240d324aaf3de36768f46d44adc660e5ce89036c9b3213fc1f58. 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/c2155aa5-183c-46fb-854e-47701871ac3b.json and https://artists.proofprofile.net/proofs/artist/c2155aa5-183c-46fb-854e-47701871ac3b.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 0xb78070bc502fb382851c4c9502c6bd3c89aee3fc617bba4b5061c93ce7b9d87c. 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/FRPI32400509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78070bc502fb382851c4c9502c6bd3c89aee3fc617bba4b5061c93ce7b9d87c. 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/FRPI32400509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613ed00b82684f9ee63078ce914ee22be4e502cf4f07298a2244dbca9b15f08a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FRPI32400368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820c5e67c6d76e3a6f83feaee72ef6666191bb892d418f408a249ddc9e01b7f7. 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/FRPI32400406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820c5e67c6d76e3a6f83feaee72ef6666191bb892d418f408a249ddc9e01b7f7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRPI32400406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae7dd2f55ba93febdae2fb7e1b7a5af92e2ef3fe85376ee2891500f768dce61. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FRPI32400439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11291de815dfd61cb1fafa5f321134c09b429ba37a6dee31dbf520f3acafb1f. 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/FRPI32400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96689b5808bfa2935a021128e1e7884072198ce7f534008bae1a66d5df69e255. 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/FRPI32400649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96689b5808bfa2935a021128e1e7884072198ce7f534008bae1a66d5df69e255. 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/FRPI32400649.
Dernière musique obscure de la nuit peinte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1e1881ab784101982b9635bfcff3c2682cb2018db958d63bcf373ecaf00275. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/FRPI32400458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0b94ab7eb1aaaf735ebfe0c24e6e350bf35fe223689810106c912c8bd9dd44. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:43:04Z), 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/FR8GV2102000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5b9972b100142243192a5eafb390b17b4b1b40bbc4dbf128e9872d88296635. 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/FRPI32400541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2815468470e527d4b0283460d68d1aca76f0b7f6f16dbaa1f9ea49d671184884. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FRPI32400488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841304e906aba7dc1e58efdd57382a7373d34868f4a9232661880ca5f46ca31a. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:54:44Z), 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/FRPI32400490.
C'est à la poussière que nous retournons
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74deaf0a71146e2c7e8c9ad4cc918e5a8484579fb286df5ed94e97978acdc57e. 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/FRPI32400866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e19856247e3d9de5156d974c12c0e294ec56855dbd565f2c90f0a2927b5607. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FRPI32400853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3556240508ff775e80f9112969eae64550e34de9bff8a27d00aac7c72676c1. 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/FRPI32400854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07db7c923154d988205942b0c667852ec77bf061390b1df1e7eabdfd333e87c6. 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/FRPI32400857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bc1f7b32558ad7eb5e380ab117d4329bcb450cb785f32ea64a6ed15818676e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:28:44Z), 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/FRPI32400858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5914dfc5bd503d589b5d4f46449a504c6b2dcce47130cdb95ebd604623c17f9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:02:37Z), 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/FRPI32400860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd916e20f7a40efcc28f443be53dc25b3f6d05191104c2c9357ce4f51e20e3a8f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FRPI32400861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74deaf0a71146e2c7e8c9ad4cc918e5a8484579fb286df5ed94e97978acdc57e. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FRPI32400866.