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 0xef0e562a98a6d0f48099c0738f803e6f69a62dbacd0468832f5e153dce642f82. 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/5a08b93d-7fa8-431d-aeb9-9d81f986add7.json and https://artists.proofprofile.net/proofs/artist/5a08b93d-7fa8-431d-aeb9-9d81f986add7.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 0x4637b87056998852aa378c56c8e4e515d6520a922bc27543f2740697e471cd41. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTAU2448733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa518037075ef661615b0d9970c9796494ee802689702bb11ecd49c48671fcc6f. 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/QZPLR2481504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c66babe5f08c5a1d6fa6f0d4cac4a9b1fa186dcdb155287e5f2f88bff165a0. 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/QZMER2474606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded3985abab9fac87ec8d0c06eebc780c1127dfe433b015ea3fe48af51aecb07. 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/QZHNC2409510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0c5242081a21e3dca3ac56d05aff6c860ce6a2af77b3135be46b46d551e6c4. 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/QZWFE2338270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2664db3e9693395dca224b1f58513f3006c6714bdbc49c092560e97213ba813. 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/QZTB52315261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01732e8afbaa973f1a59cb351c80c7648ec8c89924e8c2ed7178bfbe25458597. 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/QZTAY2380849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa08a4d96ecacbba759b1027e5926e938863975c387e8b2a3f446ec1af6e7b6. 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/QZTAY2380806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5429f4e0094a8a0150e2cdc8b055ce086b3e194b22774ef205050f46b8a1d0. 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/QZTAY2325399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0b724a4dfbff460c89df6cac8ef67236af94ca6e5996c6026a4bcaffc0c296. 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/QZTAU2319916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9924db31f2301a021abc49385067fc9780e41484ac3710b6633c9f60fffd0c0. 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/QZMEQ2347759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db15ae48aadd9b78de5b7807128087d898c67d2af012cad1c77ce9a6a0d3da7. 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/QZMEQ2347851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa2b48ee633123c00af80be953882f56099f6dd6da9314a5f22ffffc71ab9a9. 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/QZMEQ2347862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4fe551d1832c96f7b9aa3c273ed6246f2d470b8ba5efa79cc4bed086de2441. 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/QZMEQ2347849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0861ac755b5e00ff9a7623d89358517390894b24f98edc051dc214ae01f16a0e. 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/QZMEQ2347860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e4d92ad9c493e9e7d77429500906ebc4b5c9ca63a7d717f896362c073d2cd5. 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/QZHN92342527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcaeec24c763d8ba959504db4b7d726418bfe3ea8729483bd5266304bea6d7fc. 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/QZK6Q2370380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53c9cbd548f729cb1cacf1164f6e4bffadf44b65172b7323910c523f88f36e7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHNB2391407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8321ccb63d5b4b61b958a919c69de4dd43a6414c46e9fc98d1453d972a9cb02e. 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/QZHN92352375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6af9c5b76b27114f14d88a72eecd784bd69db8e1ee96613edff2461dc2e8d1. 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/QZHN92352376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73038e771d6ce32c2b939cd986308d11f45d2e913d98cc0dde2af70f9e97d9a. 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/QZHN92352357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6912c08aa1de168ebfca065a844111feade9002e34490a4399a0dcdc9245ddb. 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/QT3F32505159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0a5c5ac29a369fbe0cf043d141bfaf240162a5fcd09a2f5199292c21c9a97a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZWFW2597925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f711c0e1915920a5d0ea15b596a275fc935cbaa08e85922fc2e4b2a4b2320f7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZWFG2555687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb894817bc5dea3f706ae2aec1ce8d5f4747c1dade43fe27413c50865417724fb. 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/QZTB42566359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5febaab05644efd10c6f1ce2b969a01bab806e0bf151f483bb7eab6defdf4d36. 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/QZMEQ2533365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e92a591889ac2d6799b7886e876cb8e4d57476ce63cb49c4aaeb965545f59ad. 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/QZK6K2500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104a30e0040cc0bfd71c46ef02a28f69209926ba0e81fddd613d09d031a2bfdf. 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/QZES82523455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d0bc53aee5f62d877c848c00fe47f7933c3121efc73d85c417737b7994235e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZZ7W2457858.
Por Una Mujer Bonita (El Socio Mayoritario)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6667eead97062343284f388adcb7405c627929282f8732377b995e94de32d8c3. 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/QZWFF2468892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4834b9f1aeea05ad213140968a56342a616f9a8af1cfa8ba927f7c07e35219d. 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/QZTB62438038.