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 0x8b09830b19ea433a68ced9314c3af2978998aadb28b808c02298fcfcc7f071b5. 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/baf31d99-a3c5-4f98-bf09-2bb550350789.json and https://artists.proofprofile.net/proofs/artist/baf31d99-a3c5-4f98-bf09-2bb550350789.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 0x5bc3d521ae2f745ecf337a8fb04a9db8f69bcd7f37e1a5f14793eecac371b4b4. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZ93V1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eabc1ffa8f4b60065a63952122403f52728fc53e58588661fa5b51021d3cac2. 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/QZ93V1800002.
Moment Of Truth (From Smallfoot: Original Motion Picture Soundtrack)
Moment of Truth (From Smallfoot: Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a42b82a21a4651fdcd90247829ce31a208ca87f2138a04d7abe389ed235b08f. 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/QZ93V1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb9ef8695daf6f0ccdcf900b7060200f93ebb01ffdf515bed1c1c1e9240a878. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZ93V1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e86fe9d0f76c4491c41ab6a9d61899196c8561dfcfa9d99b0dbaa262ccc3cf. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZ93V1900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8ae95e81ca1267b61985906e3a40556b1824952f88e3b427a283ca2e68dfaa. 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/QZ93V1900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2029ef4ad115c49916fa28555e318f49484eb07598e3a9048abfb72172ff4a. 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/QZ93V1900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cb548bca0af6e9959200225896f215b6f119951cd65fa676179aece2a58b67. 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/QZ93V2000003.
Drinks (From "Promising Young Woman" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc470cda80d0aa954fcd39f77024d07017ebc952b1ef91fe572c20ce156eae1a4. 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/QZ93V2000038.
Drinks (Live From The Peppermint Club, Los Angeles, CA / 2020)
Kiss Me (From The Netflix Film “He’s All That”)
Heaven Shine A Light (from the Original Motion Picture 'Moonshot')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c6205b6699c9cb6f70e407a9b4b5266c044a22abfe39f288d571a2e269c89b. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/QMRY42201953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be9eb91ab21188cf37cea04b54a1eeed3324645c86e88de81cf6c345ad86c64. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZ93V2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a177079a984b2ee907ad6d7151e9fb50bd42d49356e53479a57eab5720a021. 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/QZ93V2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96403ac23544322e405b78b2d98cd8742a4bd2852d23eff64ab51bb2e0af144f. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZ93V2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23f662107da3cea5773ff29fe78fd022068f39e8e997ea6cc138b3dd2db06f2. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZ93V2200022.
Valley Girl (Side B - Los Angeles, No Offense)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916fb771f1052024511e237ceff5007505a172a9d44edabab12e0c1c26e8815a. 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/QZ93V2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23f662107da3cea5773ff29fe78fd022068f39e8e997ea6cc138b3dd2db06f2. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZ93V2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96403ac23544322e405b78b2d98cd8742a4bd2852d23eff64ab51bb2e0af144f. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZ93V2200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ef0de43258b5586624b4f1d3294a26f0f1c7c3acfd2727f1538c60a219e6e4. 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/QZ93V2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e85c3e0c810ffcb3f3ff5d522666e6801d9a0b0a5e4ea7353050526994e30c1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZ93V2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be9eb91ab21188cf37cea04b54a1eeed3324645c86e88de81cf6c345ad86c64. 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/QZ93V2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916fb771f1052024511e237ceff5007505a172a9d44edabab12e0c1c26e8815a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZ93V2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22506e84aecf0a054141b5b8cd2300f03964eda1526e3f83e74db6b09693e0d9. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-15T21:33:28Z), 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/QZ93V2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbddfda1cccee278b8db7d83512f1a2fd534530f1ac4e7f6881ab5c4e45d2922. 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/QZ93V2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d09cabf5aed3cfe68b7516487fa4343d6baa673c8ecefd36a8d33cbf1904bfd. 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/QZ93V2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e74410fcc5cd7b07fc63c4494e4c2b593ddecab46c75f56240a7fb662f1ecb6. 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/QZ93V2200029.
Sex & Technology - Mikey Barreneche Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6edc9b43f2368de925c895b049fac04c1bc25f1d14ef4445c245941d6d51f3d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GX3Q92018124.
Pride - A Compilation of LGBTQ Artists for GLSEN
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb552efefe086639f08f1673270a22609f81efc4d96c77307f98bb8b7e3b0b036. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QM4TX1862014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecd4d3ba269f2a9eaa6c3f3f0ceedf4f069950af5dacbe624f481f3f02129ef. 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/USAT21907518.
Uh-Oh - From "Promising Young Woman" Soundtrack
Promising Young Woman (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d0861ed9f3dd8240410d2421de2a48ab209d1db6b1f4c6de9d201a75e20adf. 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/QZ93V2000002.
Drinks - From "Promising Young Woman" Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cb548bca0af6e9959200225896f215b6f119951cd65fa676179aece2a58b67. 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/QZ93V2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57499afc0ebf1b1894bdec96087c7d158910963d6601c580c9e801ce819b9d2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZ93V1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57499afc0ebf1b1894bdec96087c7d158910963d6601c580c9e801ce819b9d2. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZ93V1800007.