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 0x1d956ea6bc5f813fe2859f6af4e1e7a2654e230aff4a71b57483356bcce7b59c. 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/e434b87c-e958-45f4-9289-7ae77fc76410.json and https://artists.proofprofile.net/proofs/artist/e434b87c-e958-45f4-9289-7ae77fc76410.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 0x94eff905b3d78fbd0902698f2355887e10887ce39847da10e89c5f3402409e7b. 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/USHM81570029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad992ed87f66bca12ae71858753b47a7c2ae5b2b2de26a8114032c2906b84d9. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USHM81570039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f28d1b65d6cfa7a5b8122d201e32940ef7e8f87fa99d424bb9b998e9c89997b. 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/TCACM1627065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe943bc38558251047e07758d410a76d052603cbf978a13a93d504c4e0cb6522e. 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/TCACM1627067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129ea0b08d02760108c6e45264a1675eec318594fb1a76bc213df28be1ec3ae3. 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/TCACM1627070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ed931b0e84bf2d72c01ca90f1f2668d347b2fb1cbb16052a0fd734b9444d5a. 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/TCACM1627071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb073ec731f3a1d7068dc778f5e33e912d0b0f0e436a6ea1063a1faccaf062da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCACM1627073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ab6e76e4f5b09f5cfe7f665f4c51ce3345865d1672839dee74d9db4d2dcd1e. 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/TCACM1627074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cac8bbe0aa29cfd375ec446e623addf01dec916b1daa26cd19e7cfe7a68cf69. 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/TCACM1627075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1485830936ba6022b2a03b6c0f08aa08d305679f363e909f85d468b6f5bdd18. 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/TCACM1627077.
Seasons of Lust (feat. Bachelor of Hearts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8527b17de4d859787e6770936d9c7e101030f712925609e9aa1849e27101acb4. 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/TCACM1627078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddf9ac874ad60a78f076d5bf77b9732232dc273685ba0ee37a9c0e46ab7ff34. 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/TCACM1627079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc405a9b9f4ef5c317ff7167f0871499c60a03b9f2b367545c3392ce10e28012. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITXDW1700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8438e21fc3ff4a9082db80fdf87fee235d6e41b02a13db867e4569b33453bf02. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:36:42Z), 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/ITXDW1700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc807aaba32754e8f573ebeec0c73255bb367b534fc7ea732ee9e9baf591fbcce. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITXDW1700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262b4d3c1288e3b1d911bb86bff16e428b1a173c2695b711da88ddba957b42c2. 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/TCADM1847736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ec853839dfca03763ccc1dc3a1854fe79a27030b490a8f8cb4da07fbb422b1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:32:45Z), 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/TCADM1847738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78374b9da958e22c9af29266e3c615a823bedc0693817cbe3f5a8097ea320707. 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/TCADM1847739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafae0b1cc3685c60a543fece3b8d770f23130517b7dd44525dbaa49b9abc2254. 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/TCADM1847740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020ef4bf1505ac5a66506e48b266c7202bded15cfe30e4a7b6eb5cb3500cfa29. 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/TCADM1847742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5515c0c93fd6bf4134997c9e4a1883c1c60afa5005720ef076984dc4e330b8d. 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/TCADM1847744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44030621ebe44f50861a2a100615bcccfd51cd6f0f273d7c4bd57a7d64e73cf. 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/USHM91842906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6c0066561a5dde2c34013b050f294eee8d75cd39dd736ea22eb5ef64eca95a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:04:11Z), 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/USHM22060500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e7cedb38b6a58d8389c7450520405ea2e79c5505d88cb87918b751189df3dc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USHM22060502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb87b98718cc9ddb23ed3433e9ca1ebc30aa7a4bdac306523644d12df9f49e75. 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/USHM82460202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1682b22f59db24e4effbcde1967601043e696d0a5fd670d6495ed140986fb5b6. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:47:07Z), 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/USHM82460294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff17b8895d26689b32980610bb396deca4116cb9e5e941280891fe273dd65979. 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/QZK6L2063140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f20571a9579d727fd6af044d368c1b0af207cd6189a153ea883f99ceb6a33df. 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/GB8UU2000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb138c689a9ff729747312af4afec4b2a190265c6d1e278b01fdc2d51ab651c2f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FR2X41532159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866963e36ffc35c765924334e5d54bee2c8012567afdf70072c849afb02df832. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/TCADO1887990.
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
Unnoticed (Robert Parker Remix) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc688f36b7c5481c1a4ef8831890b063e99f6430110f1f32941356b1c6a0535. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/GB8UU2400347.