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 0x4c2f2785f5de078f3f821f539e3f799ba5f620339b42ef5d0755de79630036df. 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/87dbd301-e193-4569-9670-e79c13fb4b60.json and https://artists.proofprofile.net/proofs/artist/87dbd301-e193-4569-9670-e79c13fb4b60.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 0x47315dd2063c51aa880356ca8eeba23157fb00a1dd37e1ffa651dc0cd56d4911. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ZAA011500143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ff1fbfe6f345831026ee10a9e6a86af1b5f756cb97be0037b8d9fde5ddd62e. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/ZAA011600049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4590f407bf44fbab50b888f1bddefea62da58af3c9af269041b02e99233da2f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:31:23Z), 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/ZAA011700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823a5ad87ff3870c9916f0eab41e4e6760c2741917d661b89541e761b366426a. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:00:43Z), 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/ZAA011700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a20f341adb0ba1abc959af9bb86ea44c542ad4d00052fc47e5094eb433626be. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:05:16Z), 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/ZAA011700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0c3227c471d41bf32f640b55b7800c10f730f2a16632de2de227890d2170a8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ZAA011700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa8ad951b0406798f590d54dd0a2106bd3ff13f7856a4a4fbcd306647e06b5e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:27Z), 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/ZAA011700020.
Making Love Out of Nothing At All (Live at The Shack, Pretoria, 2017)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b052fb6dd6e728f9debb3ce97cb2d9b7339824404b727b3246ccd33c130d10. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:12:13Z), 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/ZAA011700261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6b131e1cb68b3e847e15661b38ded67c2903ac45ac32eb39da916aa1a6acf4. 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/QZNWT2394672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74d9bc7ff894d313c2929e3c4ae81d0b5ad7d389c04cf31e383b6cafb1cc9f1. 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/ZAA011700365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa394196e0d2c56d9bff6c6fa62a822e4ac669cc52f2156f8626c1922b860e70. 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/ZAA011700366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5369116b1105c942b446a3fc22260854b8f84bc280c2e77125a09495ccc05f0f. 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/ZAA011700372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73945e5143e53fcd49f5d38311e1a6ede552d74f41299124361c826dd6cf835. 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/ZAA011700373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ea5d7a09732cf365b59b6a26363392493634d56bd4ecbce9a6407831dfa1c1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ZAA011700374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b775c399d7e0b679c3547adb5a73f7cc8d4dd846cac1845af51222f05a3b4a. 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/ZAA011700377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74d9bc7ff894d313c2929e3c4ae81d0b5ad7d389c04cf31e383b6cafb1cc9f1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZAA011700365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a37959d16612cc6adae9fcc2f5484acf3baab2e5e3f389a41a944c74759ab1e. 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/ZAA012400365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d85d6214d7917d867f3989164ae80ac1f826836a83b12eb40b0f4579ff69a3. 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/ZAA012400366.
Trustfall Into Your Beautiful Things Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50a0f38628bd210e7f2458cd7909f88e9f3bf55ab4dd2a600d9803b6928278c. 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/ZAA012400367.
All The Small Punkrock Things Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fc72c08dcd676e672428d68cf7612c426bc5fc59678257f9ec1a9932f681dc. 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/ZAA012400369.
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 0x66ad2aac7e316e7340e7f16959ba5787288ab982bd9b59bce7302ebd3e3119ac. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ZAA011700367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3045072143a061554ceabb1ad5b16e9e07d3ce81fa2a590bed68a9d0552af883. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ZAA011700368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34fffe069eccd78481f2c661d973535636cfc1e451fe5fa930663c0e760562e. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ZAA011700369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa566c9e377514d545f51e87092dd7538a3f1fa8de9cb1f2ca6fc758e9ce697cd. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ZAA011700370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a76254e027d1cf26b014279b83a22e8ef9c95d4d15e24aa3fa855b224158e17. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ZAA011700371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee52e25fa04312285304527abeab2e0b05a84d037b24a829c2a3a693f86464a1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ZAA011700375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0859a817aeb1d13ed988b3e302a9dac8ad75c060a33b362d66b9c660995ba0d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZAA011700376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94fa54df47f7a3dff416eac64715893498bed2b998a158a2b6824bb7d0c4ce2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ZAA011700378.