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 0x3887cdae27af2d33a78a30e2b5fc229e8cc9b00320e62f5583314344dcf834ed. 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/9cbc01e7-084c-4763-8d2f-d39e53a76d9c.json and https://artists.proofprofile.net/proofs/artist/9cbc01e7-084c-4763-8d2f-d39e53a76d9c.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 0x86d9c9a1d217b92bab699f8ec0f5807fb52ab5ad88a39043603c766b8e81f57f. 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/PTBM12100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd0694dd3d84dae61ca811c1766479e9d48beb73efb55f23fb3a7d29a261f1a. 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/PTBM12100183.
African Vibes : The Finest Selection Of Electronic Music With African Flavor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfa7f65a75164707792d5bb6fa8860ad5e0b3cc8ea6220b4062c16e8fb747eb. 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/ITFGO2000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305c7c6b3e7bbb428469398e64cb2bbde61b80e51013bf5a11721c472a8a4c9e. 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/ES71G2005485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bc525dc3095c5ff64272c8fc2fa6f7d87d7caea1d12e3a965f0c49778c632b. 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/PT3KV2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7c07941ee5dbf772f6095578864c59ca46bef4ba61c4a1acbe48a35666a94d. 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/PT3KV2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9de87dde02d6c38bb3e2125b422f7011793603bd5d7438c6894fbeca2d3076c. 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/PT3KV2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46b1e348bb12bec3c44abca03d8f3a7be1ce320e19648d5c82077b331da7d1b. 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/PTNS12000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7837f5231db8609810b8571c7a0745060b7fd9785229f1050ad47a871f82fe. 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/ES71G2335153.
Serviço Público (feat. Selma Uamusse & DJ Stikup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72325ae44b1ff522c60d373beacab09a12a738fa756920b18854e4068a07e51. 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/PTGMQ0610100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3a89bac8dd21124cf6c91d4cfda3b51669d6c501375194b0a37663db34b3cd. 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/PTGMQ0610102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d3ba7be1bf27a934566c415897f08cda69d8c92c638195f5fea8dda198f65d. 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/PTGMQ0610103.
Pela Música Pt2 (feat. Ikonoklasta & Sam The Kid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93b5dbdff1c16e39ea3d85aa7256c4e74d9c0a133010c1392e16fb3696f3fa0. 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/PTGMQ0610104.
Canal 115 (feat. Bonus, Adamastor & DJ Stikup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a79e57daacbb82b3863c3a00564923885302b76a63f4773d2d33e874ade7c51. 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/PTGMQ0610105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360abec8567d6dc9a9dd60fe61605f044381f263485454854d6155bea84ce8b6. 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/PTGMQ0610106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc267cce152b07c82318b9ab6b87e18072ad9ae5686386fa211f82452e14b3dcf. 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/PTGMQ0610107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168220c4b1cb476d19f3bc711f0b21907be5edeaca5d3945110e5b8e1edf603c. 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/PTGMQ0610108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd727768b4e623995f23ee0e047caedfc035387e7fda667393a9b5ed2c7668182. 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/PTGMQ0610109.
Monogamia (feat. Sara Ribeiro & DJ Bomberjack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49158a5e2edcb1e9338abd0b5212cff7784511542715cead617225b589890c56. 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/PTGMQ0610111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa356137f73aee6f070fba3ebcc17bca7dbfc1bb7c903b0215fa2015d7e533977. 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/PTGMQ0610112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604eda08070f8b9d039363e095ca590269d657fca399f73aa1658bcbc4a6a703. 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/PTGMQ0610114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1dd6df536cbf7189d4c6b5cd4dc9fc40ee2d5b7c9e8ab0839c238d5b023e9a8. 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/PT6DV2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabda1c6d0b4712a0afcdbfb557d0e1395b505bd54fa38313bf268db53ef90833. 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/PT6DV2000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420c240be8a4b98da9f7489d3cfd8c11bdf92ee6c9d44cb19775d8d76d4da066. 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/PT6DV2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcce2afb81a779ebaa3cab01134f005afe842571463a5a82f9125c9ba0730cf9. 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/PT6DV2000005.