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 0x138a165f5d2a397df3fe3414df72215b6d70dfad09cd6b1fefb750b04ee49d81. 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/42276541-6c97-44b8-b092-48bf77d4f9b3.json and https://artists.proofprofile.net/proofs/artist/42276541-6c97-44b8-b092-48bf77d4f9b3.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 0x10b375f18c5eb842a9587ca0e1beb8bcb50294931d81acb48dacef8c43842662. 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/TCAFM2112559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc68468360b134de0796068798fd28d342a2130f3ce2edf0a41742d05d19e424. 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/TCAFM2112646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d8c49671fcd4df4409e6382708049ab92bbbeeafdc4ff772742cc8f92739f9. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCAFM2112745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14446a243067bec0f741543efc9eda2e6d8223948944bded94d72bd8297e069b. 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/TCAFM2112874.
The Girl in Blue (feat. Jim Lauderdale & Dani Flowers)
Every Victory And None (OurVinyl Sessions)
The Raven and the Dove (OurVinyl Sessions)
Sparklin' Burnin' Fuse (OurVinyl Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba57b8de2071386eea2978414358c09677580631a91d1d1b518e1e769dd4b148. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZL982000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0678262f0c37d983bc8fc8fa9b83bbd887c24ffa1a2a1e7090033de640a29a. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZL982000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbed496f3f903141be4d5536b3fff01c731c89811101017493512e9a5712f7a. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZL982000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1896c12453313db2eaa1113d46067aadad1e63dbdc03ee2a4edde7f7c7982171. 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/TCAFQ2164116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b8f6d674a892c16bbafccdcae1036633c0ad3943900b2f3c9166be4518157e. 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/TCAFQ2164120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6620a1ab7fb7f3f2e1bcab8c125ab8ff4df904c309fbbabc61e2f47804de896. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZK6P2329689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa247eeec03430c5e8cdde54c6ac19629a27e52290659a9c588adcb8f40102285. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZTB32414686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1843959783aaf8be4520d6f994f76337060d66f43cf713add32276f4be21ec. 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/QZTBD2493393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca8442b3300767866f54c82800ffa2ca8a11bfc34f2ace601d0858a62215273. 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/QZWFW2498456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4215466f492b7398f21aa253ff17b947b4142a862bed08d7d3c376da9724f23f. 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/QZFYY2537487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca8442b3300767866f54c82800ffa2ca8a11bfc34f2ace601d0858a62215273. 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/QZWFW2498456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1843959783aaf8be4520d6f994f76337060d66f43cf713add32276f4be21ec. 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/QZTBD2493393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd6cb97b3c6a136ee625df3ca3a0a1d0fba620bea623e90a2580907e404e3f1. 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/QZFYY2537488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8247c845ef4e296c79157cf2dedbf97caa658ac72451073c486eb1ea20316a0d. 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/QZFYY2537489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d1d26a7757961e6eec235aa15fb24a161a8e47cfa1e4bb53f4e8ab242ce137. 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/QZFYY2537490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad90003bd2c55c3a926fb9bdb29b77dfd6ce9c42d9522daa645dce1b4165e80. 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/QZFYY2537491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34613fc18edc2e961891cb8c69cb692ff2cb7116f266289ce641d49082561713. 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/QZWFR2471722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca3d1df0963cb22508505bc3f2b01b3ef7a7bae5300eedb9fff3d266652b5b0. 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/QZFYY2537492.