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 0xb2e107349c815a414cf18a8f2f16e64ec9f1e7694647616ea07bbb8b9924a9a3. 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/8e99dbd6-f865-4c4b-936a-a3d8920161e6.json and https://artists.proofprofile.net/proofs/artist/8e99dbd6-f865-4c4b-936a-a3d8920161e6.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 0xd356601b026c073a5d21ed698ee021f4168134449c90357d191555545aba8e41. 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/TCACN1663283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913eac1b6637efb6dc7284aae66c72d90a55263541fe4211ee96fa3c8910d744. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCAGQ2295057.
Right Here (feat. Mr Eazi, Maleek Berry & Eugy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb47c14b886c5f29d2b6654b5903782a07c02543025807f390fa47be983f597. 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/GBARL1700294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e42967d5fed2f349a9ecbeffa15fb1900648445e21499d02b43d340ec47d292. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR96X1721889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b96b8fac706402bfa03eab98d72d3f18586623a1e7b8304515d3b62e97d36a5. 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/GX6852200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ee4883bbc198b45c2404f152135453e7ebd7b79f26a1060160d4ae4a0abd06. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLRD52018535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345aebf53fdf40501c11c59d7d76b51e262ecdc364d4f439a0183a8ec1e9f457. 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/GB7TP1900191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa881acb0c9b886e2ea2989bac90cbf1bd6ffebf47fc2e4ecec30fd8c622d427f. 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/QMFMG1552594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17320627c72b6e7e6c2e5b6b2bcd2c5d1448265eca819b8c12bcdf14e26ddb5. 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/FRX282079136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17320627c72b6e7e6c2e5b6b2bcd2c5d1448265eca819b8c12bcdf14e26ddb5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX282079136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674eb61173a0b460cec13c7e520b8620cd1f500f0225070ea2244dcc795796b7. 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/QMPKX1783349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afc6cf11e339ca4114d068702373bd477fdb8001e8ea84f2977e8f43baecbb2. 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/GBX722100513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5f9c522bb045e21656209d878eb8aec7afe8cd78ccaa07f05fe3d75ccfba22. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUYG1560732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfd4cec344664980065baef205e089209f8f85bee87d6409c0a99f70f4894df. 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/GBUM71703188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c32006baaed4b2eac8656bb1816707126ef0fabcfc7b8ece525d78cfbbf716. 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/QZHNA2368413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c2c7f8b5e193e63392b14a219e1447713130af37e564fa105b5fde788aebaf. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBMA22096569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9f483615080fae10a5ee9b085dd4d4080231786980cca8babf883d5dfcc36b. 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/GBLFP1893546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe8636db27efaa5d702c8d80aa29969923d44b48b250acff9d792ca33bde75e. 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/GBX722100561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096513a38bd34ac3d276b130907140a6b503f38074ba4583f85d59969c02b1df. 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/GBX722100591.