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 0x46f2c4d2ee51f8c2e92a8b04763f40c72a5200b4e25e8613268f8af264c7e4ea. 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/b9fbbecf-7c2d-4043-b94c-4815f0b769a9.json and https://artists.proofprofile.net/proofs/artist/b9fbbecf-7c2d-4043-b94c-4815f0b769a9.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 0x159e64da08c784f4569b53877c29ad845e9a1d03a71933803bdfe2f7ee532de6. 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/QZHN32208740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61e826f0cc558ad4181f31c4e834f47a94780673bc888f50e9be2ffe7d7262a. 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/QZHN32253596.
Magical & Quirky (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fe998a1848526089ce4cbdfb416012b6aa6d366707984c55b7a1a6c4e63a61. 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/QZHN42288175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d25cdc7e5d8a3b86dd00608f916569821ca4b0bebd5607935c5e9cc5a52079. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZHN42288174.
Documentary (Original Documentary Soundtrack)
Suspense (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc59cc023f2b2dfde68a7664a9519c3ed09c9e91d0e63a6c840932eb4ef7f44. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZMEP2285827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6ce2d8d333c222de87825cfad3ea631b717390f71679270b1122a7dedf8fae. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZNWR2282605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056b2bf2c515e4eeb2b8058f10597077d40c030ad691481f8cbb682fd92bea33. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZNWR2282608.
Corporate Motivational Inspiring Upbeat & Uplifting
Sad Piano and Cello (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f54153802e4a76fdf2fcb2dc676e170ff7d56b6540d46f2a5e1e55f30a481e. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZNWZ2260953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4065a6207c23226d4ae11681eb368de88afbaf550251b70eef9408ae059e8d73. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZRP52272205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0df0218fd5aa44ce4963a4cfe308a03c54d803999dcffb89736017f11060d5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHN72312491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31271fbc1d154971a2eabede1eab341c2951033a72224d1f980cf46fbb86502. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZK6J2322840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf34d54048e7e600ba3bfce9e29c9a4107a8e2bdd241ea37cedf47ac03602530. 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/QZMEM2320515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c25f2f41965a50ecb5083c7bf39f42ddffe7bdc7fd6f783f05e6c08e6fa8496. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZMEP2354119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52aee63059d4fa2eb60115005b6b4a0993d5047f431b47dda30c7327f5482d7a. 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/QZPLS2326602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451b8194ae6bf4ff668140888457e9f0c98975eaa5982a3e8c7d3ce7a023ca03. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/QZTAU2395020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52f0c7ba770d419769e24489a776e4ea71bb0a149da8e211faed02f62cc650f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GX5MX2301060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0936c54e06e893d08e041d922303cc42490f6f59ee0ab58e162f4e909f119a3. 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/GX5MX2334883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7324299069c366eb447317158574e6c6f3ef9df385d61ba6cd1e5d8d9da8af. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX8KD2462205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb3061bf7a1bbede29a28e71289087a3e6e941a080a1f582a348526a881f6de. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GX8KD2425560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7afa48060ecc534f46ee01db580fb06d5e5deda84296c9319ccb68a6e600e3. 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/QZK6F2410595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b70ac2f8706aeafcd23653078f47c9a93437d23e05e9fd6c1a9e1edbb277fc2. 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/GX38U2405841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb35c83a922f6113b3ee044989709b5384930cbbd072591ea97a40124b41927. 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/GX5MY2401642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cf426b9b1a6d61d24e27c30a7cfeb935502a414fde0f8068e17e03488195cf. 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/GX5MY2467252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345fd9f8e8d072a41019c19ee82cc7ac9d115db0e52eea3bde8670bb43c8c44a. 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/QZZ7V2477245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb37bc1c5ad4c120ebfd26a4916465208cb4e762ee97031eae358ebbcfd99a3. 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/QZFZ32530520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3383f553c90f5421e62890b67bba7f6469fcd77c556877bde115c76154bfef. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZHN32561784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c24b9a7523d39bf7a6fa58ffe8ee129c161d1903cae6601bd098df2a2a2476. 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/QZZ7P2500289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22b71f08dc4d317f627d1a12b9f3a7c81c9522c9f2534594635cc4b58cd2720. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/QZZ7P2555423.