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 0xa923d910595267b97738eb2e6610840b231b787bbdf6a09383033360934181a7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da61efc2-d1fa-40d1-91f3-473455226a37.json and https://artists.proofprofile.net/proofs/artist/da61efc2-d1fa-40d1-91f3-473455226a37.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 0x81675a54daababf853ffd067b26d2c6ef0f19fc288af253b3a490d6725555f73. 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/GBDAP9510003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbe5b3a9c529c2cecc08ac3f454e91ce09bc126f5e98e47ef717fd38af261c5. 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/GBDAP0210099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d0a320a382db56809a04e9178cf0853940ffbb1ab01ecd5e8ed6d9391fb33d. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GBDAP0310128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4ceceaa2e29482a6c45b390de27e8ae9de5de25b34b04a060824ecb9e5d51f. 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/GBDAP0910878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7493191d8918938263de39b46eabfacd368242ec8cb2cc980f4bd1c0d1631f. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/GBDAP2010103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23900a0c8d9e9c094c41f7caccbbc852951f50fc69256b0189a0e64342e97ca8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBDAP0910102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f4e7269228e129e0125a59657242f5e74379d1d0d5d59f1a383038b7a7522f. 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/GBDAP1010119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318de52927d330cef2a0e97ffbbbd3af1ad01ee5b9563a97a55dbb21775eb5cc. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:02:18Z), 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/GBKQU1772615.
Good For You Records Icon Series, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2261d9b93784015f2eea9dcf08e20e6fa582e78d793d95c6704b23fae83e03. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBDAP1910251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6b73e31d6a06697cbcf2b3aa50ac576d02b1ed79f8c11c491243553bd2a29a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBDAP2010167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92aba63e87fab5c42f4a57adcfa7d350f6d39ae1fcfe4c3df03c6cc17787f342. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBDAP2310172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009d7405cf028f04b0e77861fd9893a386cd5b81b26292ef7d2a194f687ba7f6. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBDAP2310185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51002098598ce5eaeae85faca3d47b31b1ac198efddde10548669f912a4347d. 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/GBJAJ2401137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0544e1702dafa09f4316305ab3f7fc4c6e1ba46834cd2c0e646bea04a06d24ff. 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/GBJAJ2401136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7892b1ee54b1a86e9373d0317d5dbad92572ae1772f88786c6f6ae7eafc477bc. 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/GBDAP2410193.
Electronic Music Anthology, Vol. 3 (by FG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf92ed3d239849746acc59636973fceb9b1b95b7f9670a4b4953dbfbbd58e54. 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/UK2ME1300190.
Quintessential Christmas - Mixed By DJ Spen [Streaming Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac1e52074bbfadcc83dc82c46a4d859048da3f9327040dc3b5d983c4c2e158f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/UKF4C1601761.
Let's Get Busy - Grant Nelson Club Mix Edit
Remixed for Life, Vol. 3 (1992 Vs. 2020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c8e76752ff42aac5943666e62ea2aeb78a0cca60b06c201fa41deb965a826a. 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/SE6G51901303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc8f9ff30863178e470f32350f13bc44ecf19dde0a4e9a73198c8e38c2cc386. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBPKF1200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750c619a97a5b2f5a717eebe281797a5f98b5a3fe22ef89ad21d0f5af317ee21. 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/GBKQU1872691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31782469457b324262a488e25d949cfdea393db28a8a1e2825d1e634884d755d. 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/USA670601364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5174ac31d84cb3f980ad22a8324949a069f353ab6c416a92705ca0d866bffa16. 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/GBBKS2100242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1f7eb03a002711f38608c96c2bdcba9bfd1dd0686ed54f97978d6e12c396b4. 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/GBBKS2100241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5174ac31d84cb3f980ad22a8324949a069f353ab6c416a92705ca0d866bffa16. 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/GBBKS2100242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4baac84759d30c588493c3ccefc99020069e073432581a7bbe14e339caccf42. 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/GBBKS2100243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f361e2ff2ff52ea2c69fed6bb4dd2a49f33474fd981bf9883da7fc23e3caf0. 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/GBPKF2200109.
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 0x6989707002318e0ee344451296e77c842920f1e95f1d80b27c46d5e5c7b554d3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBLV61926972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3df6c1cec324e2c091caaaffccb0b36ccf8e4bf2ebe3ed8b6a1d8c36b9d2d6c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLF711600172.