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 0x4ba2220545b6181d815670bb03a26a89a75442dd74890dc924b560147a780b84. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a95274b3-15dc-45d0-990a-4374d10b0abb.json and https://artists.proofprofile.net/proofs/artist/a95274b3-15dc-45d0-990a-4374d10b0abb.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 0x8f912542c388cd0dc5aa1e80ffecdd91d75add1ce74d45e4d8385ee91ea9be66. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:57:45Z), 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/FR6V80458780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c026150d2db240f399b64516676ebe5f86992914d52f34fcda28d95f1fd333. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FR6V80458781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcaa72d5f9c67973176bf7c1defad01b4b661719de60a2e74e1351a2e101844. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:18:57Z), 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/FR6V80458783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99eb326dfac7eac401c6011e4ad71974098bbb88b68e5c6096d9966a8d74d142. 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/FR6V80458785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f74f2074ac019b0bee0e3b67101cc689afb4103186b8fd07e79748efb4bc89. 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/FR6V80458786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5492744e025644cdc4aa7d4a7931be80b37b715a48e2a551aeccbec8759bc3f. 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/FR6V80458787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e9e9ed1f2089d715df7dc7fccff45a2a0f5fe3fb900595f3d507420a3266cd. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:38:36Z), 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/FR6V80458788.
ousanousava chante les succès de jules joron vol 1 / pic nic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16925b21e9f3cb187d02f3b6d5fc88dc0e24e3de9a94cbba39b8dbc320372b4d. 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/TCAIM2420483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffcb962c1c6e94711c2c244b632dd3211712b47a1e056fca9ad5c84c0ced4ad. 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/TCAIM2420520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35d2a9a83db8274e8b5e4e13bf2d81253b0ed97eedb8fb4094d681cdb182291. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAIN2420524.
Les succès souvenirs d'Ousa Nousava (Version originale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e146a79c60130531a925318dbedc297392a94d2e7ab8a82dfcf5094fe06945. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:21:11Z), 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/FR6V80433336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4a5bf399b023899bf7d296b5d155015919fdaad59427910e52c113f180ec88. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/FR6V80433340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea282b255a5c7e20060c2c990c17d75a2e4fb93141b718abb779d6eb87d4e6d. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:17:42Z), 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/FR6V80433344.
Pic-Nic (Ousa Nousava chante les succès de Jules Joron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed1aca77af4f0f11c07bcac954f4f3eb7fdddb0f06d234f9a8963f17e94a20d. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:48:50Z), 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/FR6V80438901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ca7eb9275f9be491b006c457f9b807fdc3a4195c4e540ff8f89b4a871d196a. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/FR6V80438902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcc9617ec9cd16a55594ec672ef81dca96053253d3f0836709fd280c665d708. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR6V80438903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ea7bd278113305a1d51ddbdf4f7db9fd283df88c6a729d14e11c6fa4dc8b3b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:21:55Z), 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/FR10S1973756.
Chante les succès de Jules Joron, vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e26b7b27a1ef82c2c8c0e5421be04d1ea8e2b69fa3febedcf7e623beaea641. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR10S1973743.
ousanousava chante les succès de jules joron, vol. 3 / cadence pays
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c882b4a7f8a5a56969d3b39d505a8bf2a1414290189c89818bba5612f497be. 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/TCAIM2419586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcae8d9cf76cdd8f1a9c825300ac796f01f0879aac4c0109d03f796e3e4fd3ca. 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/FR6V80856801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d5d324d6c3ba9afffb2dce0c7843521f07a069fa4976876a61e9e49d9006b9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR96X1922803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff41e39f835b9a40dfd968b9b189b1d4d018f584eb40111d3cdad9227efb99e5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:39:24Z), 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/TCAIM2414843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c91f19f7202c5c4ee8de48a581ae3f382f6e2b97d1caba16abe5b2a80b85a0. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:51:48Z), 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/TCAIM2414897.
C'est fou de passion (Ile de La Réunion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09613a3d5d7cb456a1cf225a792b2c4bacb5243d6e6dc47d9f8a7e8fcfb9225. 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/FR6V80464706.