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 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 0xd4819ddca30f98d8652883ab036930ff344a7b675fea549e96442259faa28e70. 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/045010cf-ffb4-4fb5-ab5c-8e0661b12628.json and https://artists.proofprofile.net/proofs/artist/045010cf-ffb4-4fb5-ab5c-8e0661b12628.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 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 0xc37e222575e9469251dd191569fd81047ac1243099ca7bfe269f936038c7a42a. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/QZDA52417360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cb1cb0a8405b1f57e8016824fbd917386720db415e7eb66b6fb5d18f0efc78. 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/QZDA72427192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80021eaa997f52dec5a72dcf01575361aa33816bc56c9e0141f264d16484dfe2. 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/QZFZ62297705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cabe8143146464a4c717be87883186fd1d4d426f5028ff4d95534d53e2f6e2. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZFZ62297706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcc58a58c5214f7a1d7256bbe6284c4656e58764ae2c256b09cff1a5eef2490. 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/QZFZ62297707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d10682a03403be0d34c88997156fd9a8688b5cac444a5d354bc474cef81472. 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/QZFZ62297708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55576ba0b1f5005c54652189e3a3c80afc0a992a11a972ed7549f0e760168f57. 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/QZFZ62500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3909a0c61e5267c26c5c75081c078ea391fec9de584c48f278fd04e3082eeab. 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/QZTBA2405245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b1e9ff29235b872aca82b9222060f313f45e7e272b8c3239aebfc44a79d6df. 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/QZWFJ2391458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe974895ac6ff5dd1b7e92e1786eca8c8ffcdbd7b8272ccdd40613e36dbc5ada3. 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/QZFZ42399579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ffcdd884e20964d4ac787ec929fad675219ffbc0298b92275e4af093847485. 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/QZES52103624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7783e042261941e5dcc248cae52dcb1d002a67a5b77fed66bcb16de12670b895. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/QZHN82126803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7783e042261941e5dcc248cae52dcb1d002a67a5b77fed66bcb16de12670b895. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZHN82126803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7665cfe56b72c67f1d9ad67230ef431a3aa226e4c1587ca5b3f764f4f1a87fc. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZHN52116344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118d93aaa03088731f6034c03efca194f51745822a7c3ae26a96f0df60b34f31. 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/QZES62153575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ffcdd884e20964d4ac787ec929fad675219ffbc0298b92275e4af093847485. 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/QZES52103624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dea6e70b9234342d786e3dc5737f6379827edec91faafc8548e72b0d695c02. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZHNA1915612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccd7a5d2d0ebe3966102f27a091dc2c0de55ffb126292512a20005b9a26ef92. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZFZ61920533.
Signals (feat. Sunnie Williams) [Remixes]
Signals (feat. Sunnie Williams) - Prismatic Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68585939cd4ef1a4eadc934802c310a8d96fbb265434e545216ff876c129a2d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QMWZB1910881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355edcb37427d92924ab06e9eab93acfab56f351df402085251abbdbadf15db8. 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/QMWZB1810118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909707537a436e7ac9977552cad237e6c3e7f2d4151d655c4cae1ba0acc8943f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USLZJ1712970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8a283f911071f2cb382266d4dcece170dc95cc6f3e171134864538310f86a6. 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/USLZJ1712974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfdb405d570eb30996d0a90cef907f67e3717e177870fd88c4d96bbe1f9815f. 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/USLZJ1712985.