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 0x45324679930ee30e3eb2eb5c936cc617ab7c558392b0b3a7829df9fd478c6597. 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/5f301cf2-7e55-4a9e-a653-ad1eb5de50a4.json and https://artists.proofprofile.net/proofs/artist/5f301cf2-7e55-4a9e-a653-ad1eb5de50a4.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 0xc60328c9962ffc84cce0ac347182999c243040c90fcf7867f4aff00e4b2f7666. 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/USPH21701602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8739938544b6bdeb0d95bdbce68af0ba69fa5e60151062175532369d2ac638d0. 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/USPH21701606.
The Sound Heard Round the World: Stimulus Progression Number Four
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa30b2e422606d421a518ed7d3b53f4fbbc61ef2afa4d292872f164e6ee243b8. 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/USPH21700503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb18b4682a098033b8364f4f5d416b8dafcc490b4992c848521c50c6d0e1e80. 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/USPH21700506.
Stimulus Progression 6 - Muzak: 40 Years, More Than a Name
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e7d5befcb89ab357cb0aabb158b63494a7631a5b419421bf8013c16a0b43ef. 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/USPH21700701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb205d9362e7b3cd73882c2c49bd993eca647f6d3ff60b799cd78851c52163b2. 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/USPH21700702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5929dcb909a33d7945ad39a290b00b6e26a65b5ed5e237b3065c1d2b360596b. 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/USPH21700709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a6fe4ddc0c68f18beee0f313e93aa3945191356d91941566772c2677db354c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USPH21700903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59b4202432aa55172f1d4e90ca173af1e164223b06f472e317c6b0dadd61ca8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USPH21700905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81f99d4b6b230c9cf94f64ef9b0819a1472303d0650c8c88bcb4f5b338fedc0. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USPH21700906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa721270e36e0c00267c87ec154efa9d1b48a759a57adda3fc277569d720ea8c6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USPH21700907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f6f15d791ae715ff26024d34334ff40481636940564767b8ff3fad8f1baa3a. 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/USPH21700908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb54529b66093c7d9cae1caa0d864c4d8d4a48ff0310bdc3e65be2fd68e2dcf. 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/USPH21700912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb1695387761e6976b15c7d2e04e3b2e6052eaa32dd856f0f052abc0c0d04a6. 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/USPH21700804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fb009c4fc0e576ee67e42c3cddc7ef9e162df6e5a43679d4364f8417148259. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USPH21701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefb8d6141a28d82da9d95f26c50c73639a13c47762db54876f82810a9acb239. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:03:02Z), 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/USPH21701003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a0e84f93a55062a565d754e7f65d1c8cc789d87c499f4d4526b402c51bc742. 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/USPH21701902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2503fabc040ca5ba70be01aff77544cadd80606df08d9162c7cc1fee30acaf5a. 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/USPH21701109.
The Star Spangled Banner (feat. Pan American Brass Band)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c1cffbbaa6e5eb48e16eeb5e7682efe9171e5841d800fc7177b0e6d729a0cb. 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/USPH21701801.
Solitude (feat. Dorsey Brothers Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe47b56358f5a76ae78247e46ee5d48bf9b1131c6406ea688ce426c52037f5c. 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/USPH21701802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e973bb0cb9403f3ebbb7188d8737ed6806296de3e13c35d166893ccad1c47d. 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/USPH21701805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6c56137834e5e57f504d9c7d126754e16b77e0d3c0b176fc31a51b796d18e2. 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/USPH21701807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb637b3070a5ae0e04364918b5c41f5598f12a0ea0915a06c6a9ca11bdf27038. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USPH21701809.
Every Breath You Take (feat. New Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66770924ffa81e6bc1640a683b59c1b14064bdda5926f3c917a49d40f59a35d9. 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/USPH21701810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c02c5e7e2f0df3ea50ab67b9d61ef64c0c0221808d1f167484e4ec4cde03a24. 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/USPH21701811.
Two Hearts in Three Quarter Time (feat. Robert Stolz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166fee73cdbd8a8b1d028b2aeb0e4dcfae4140cbfd73576359f9a8e4d27192d9. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USPH21701803.
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 0x588e2b36aeb2a98ef32fc3376d951310e5331813c01de01498c780e4e34ea7b7. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/USPH21701804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4b7f07caa2e7f6b902f9c37975a257d832d685f7557c4f7dfd263a730914bd. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USPH21701806.
Tonight I Celebrate My Love (feat. Syd Dale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eff149bcdc190840381e7a3bca73591a33140488181387912193910e483e2c5. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USPH21701808.
Flashdance... What a Feeling (feat. New Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf9f2d890452b5940c3f7c096e06ea761e1f035904999ef536a90f77ec9d9d0. 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/USPH21701812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13084e2df8ec1ce647cb2dd408cf2558c06fbb6d5494fff92165570066519f71. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAHP2326457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ce37059bc079316d21a15edf06d8cea5be97dd1975597778c0988a5ea9d6a5. 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/TCAHP2326496.