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 0xef802f4c1bcfd0d40510d0593e1412791d90be8942656efafe0cbe457a6b3b46. 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/92c2f45d-8bf6-4297-93ad-76919d22207d.json and https://artists.proofprofile.net/proofs/artist/92c2f45d-8bf6-4297-93ad-76919d22207d.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 0x23dab4e57c1e8aea2cfb4a97edafb179a887224eccb668bc7edb1f3c61672f2c. 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/QZHZ42107633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4977bbd34e3488b6d970aea28cfa1d3e24ec1ba37045db260f44692c359e41be. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZFZ31947981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f0bb08eb52cce9821f2a7486a647f410c5a79509ac82bf6a187c5c34828116. 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/QZHZ42135290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952de0310252948357513ad3add8a1cc7af1656138ab15eb3e108821d808a9be. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZHZ42146707.
Tiago Pzk Bzrp Music Sessions #48 (Remix)
Paulo Londra: Bzrp Music Sessions, Vol. 23 (Remix)
Quevedo Bzrp Music Sessions X Algo Me Gusta de Ti (Mash Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8e5723ac878d12986bf98e5ef480178ba5a8e2e11372a6229dcc0a5ee94358. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTPX2228034.
Shakira: Bzrp Music Sessions 53 Vs la Despedida (Mash Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9876b311893df05c4fa004e61f150148758b3c8bfd6f1613dd7c2f379e46fa. 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/US7VG2361695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd61a64fa3f5088cb51ec9fd2ae113120afa8260e7e33dfe598aacfc87bf304. 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/QZGLM2309143.
Peso Pluma: Bzrp Music Sessions #55 (Remix)
Peso Pluma: Bzrp Music Sessions #55 - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc780dc961f71bd9df46fa184934946cd6a5b67cc41e7f20d55a1946e4359c6. 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/QZNJW2376861.
Si Te Vas Vs Dime Si Te Vas Con el (Mash Up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6649bb1d7548027963d88c65671b2c4ef7a4e7e8f6be8217b113650dd8f505f. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZNJX2333593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ceb03bf38b8f23c27c36b4a2f9712df5bbe6391da047c3b6c2e86c4d45ed677. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZNJY2386774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3221170bf10bb2b133c0a0626736538c8618829bc46f2b02c8b903220d08c2cd. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZTPX2363286.
Praise Jah In The Moonlight (Afro House)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e00167edf5afc01b685146bb43ceeb37ffd5d85e3fa2b1fbf676b79f4f1934b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZNJX2413095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc1e8a7be970c73294db9f2e9449e9f1372bdb78559d23a208d9ad7a0d8619b. 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/QZTVM2468945.