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 0xe4e997d7a3471250cf60122b40629ede7c0aad506a8180a6bf5c959e24fd0bff. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/585fb5cb-e8b5-41eb-9212-40d8e0b77ce2.json and https://artists.proofprofile.net/proofs/artist/585fb5cb-e8b5-41eb-9212-40d8e0b77ce2.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 0x872129ef334dceccc663841eca09a6c66f4d1c96457b9650399032427e71b4d2. 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/ARF410400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537d07390ef8aa6f7446bf80a3105d67114bd620aa91395e2d66526aa8818e1b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:12Z), 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/ARF410400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259f746b6e935c23cd9f29e409bcc7904a2a880d45ef8522715877d81686da3f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARF410400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834d35fbec2a3ec449fc0dfc367d072426ba0945f22358b9f9113ead96cfbbd3. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/ARF410400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482fe4e7413f967c0ccdae78324d7b94073874c254ca882433f3bc9d59b13f6b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ARF410500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf0e38008c7b1bd8eaede5c2f28103aaf148d63d438dc85866a6c54c04213c2. 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/ARF410500188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89eaf2fd127e5a59466a679e8d564b6f086b139abfbeacf0ec30a943e10ea5c8. 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/ARF410500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a20b8bc3f83179d4e8283beba7eb31c1a4016edb1ef44afaae52e8f83124dfc. 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/ARF411300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e25557c8c6bf36851bf58584e9bdc7fe0cde9f9529161cc81f49713f5c5f00. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:57:41Z), 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/ARF410300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31f1b7975c87f7081b655b430c293e85ecd904fcb5a035879f4266b6718e3c1. 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/ARF411300342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8109edcd897e122fdf92b57777e6b62340ffb70c63ae35ddf9c9b2778d4870d. 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/ARF411201197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d3333fe103812dd688ccfe40cbd0390aab2244b901d848d13e3f9495b50a96. 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/ARF411701764.
Try Sleeping with a Broken Heart (Reggae Version)
Try Sleeping with a Broken Heart - Reggae Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e22664b8440838d11d3b8f8e87b16ad3ac7ced86bccc8d6cb89da5a1722711. 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/ARF411800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6858107a6422b1ad51daa5d620be7817edd912a525e18a97ef97db90158c9865. 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/ARF410500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba2dd3526dcf7f606972ea177b47adf57940acede0cd65e019ff49211535c59. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ARF411600321.
Don't You (Forget About Me) [Krister Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf417042cb36ebed40be87fbd39210cae4d581c1851166ea5667518bfc78801c. 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/ARF412300169.
Try Sleeping with a Broken Heart (Liongold Remix)
Fly Me To The Moon - Ronan Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9593f6a40fbc6075a0111d26cdcbf4812bef77a7bbd90b81b463d66d661f2424. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ARF412400032.
Just When I Needed You Most (Ronan Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302690984d306fce45037928f40718f080be8d6af3e41d7208754cc93a4f631a. 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/ARF411300286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb45aac84ca2666af2cc7d8328e44a42082e2400b069c70ce679e7344bc90cce. 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/ARF410700015.
Vintage Café: Lounge & Jazz Blends (Special Selection), Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f3588fea7772b66099a0c7049de53740a7685f59fd8dc8b7f4aee977957dc4. 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/ARF411000493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb45aac84ca2666af2cc7d8328e44a42082e2400b069c70ce679e7344bc90cce. 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/ARF410700015.
Vintage Café Vol. 3 - Lounge & Jazz Blends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f3588fea7772b66099a0c7049de53740a7685f59fd8dc8b7f4aee977957dc4. 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/ARF411000493.
Vintage Café - Lounge & Jazz Blends (Special Selection), Pt. 11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d3333fe103812dd688ccfe40cbd0390aab2244b901d848d13e3f9495b50a96. 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/ARF411701764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b219d9cd084518b00536f27dfc65a86a97ee145986852032c2821685ae5da37. 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/ARF410400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89eaf2fd127e5a59466a679e8d564b6f086b139abfbeacf0ec30a943e10ea5c8. 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/ARF410500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659740553c4dc8a9397caf6d4ea3c21121020f3c288d1ea8608ca1cc953b5d50. 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/ARF412300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7119b9326264d56797ea548e2e6ff8fdefe9bf21f60306366a317dd32c78536c. 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/ARF411300993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302690984d306fce45037928f40718f080be8d6af3e41d7208754cc93a4f631a. 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/ARF411300286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e7f82a0da3ba137b826330bbd30bd288e2b95b71b37ff26c7c0e8320898fe6. 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/ARF412300319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257253c882375b0faf6b45ab6eb01866195c5e75dcddef5b5f965eba58430e03. 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/ARF412400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482fe4e7413f967c0ccdae78324d7b94073874c254ca882433f3bc9d59b13f6b. 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/ARF410500068.
Don't You (Forget About Me) - Krister Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f824eb8289b2a1eb774ff92435b7dce41ffccc5330e500480ad0533ad1ef89. 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/ARF411900341.
Try Sleeping with a Broken Heart - Liongold Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5007a4a0460930d95998e6069926b4674c6f1b31803477b7413451a0190a1113. 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/ARF412400175.
Vintage Café: Lounge and Jazz Blends (Special Selection), Vol. 12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0723073fc7259453932f687546e684817ec23f5c42b1cacadeb7acb09202e8d. 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/ARF411701846.
Vintage Café - Lounge & Jazz Blends (Special Selection), Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72380e12b6b5b09724c01af6132c29851d3e7bf85863fd37cac4483acfaf755. 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/ARF410600492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302690984d306fce45037928f40718f080be8d6af3e41d7208754cc93a4f631a. 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/ARF411300286.