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 0x91b962b0e51ee40a68f19777539bc82fa9117a2c1f7a758cc91e2d3b886d0a46. 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/6398250e-f95e-45f8-99ba-b18796174c77.json and https://artists.proofprofile.net/proofs/artist/6398250e-f95e-45f8-99ba-b18796174c77.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 0x820ae055c0b65b73d025c2c01f9cc17ea6f697b63a68cba693e04d0e8c37555d. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:22:10Z), 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/QZHZ32170630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c12df533931ec6612fdf1268714d805b087263b0220aa575bd5e20de40a067. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:20:49Z), 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/QZHZ32170631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344d9bf419a7b4cfda8ecaa46f0a06aaade280c866bc87ad668c3f250813a1e1. 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/QZHZ32170634.
Tomate Un Trago De Ron (Champeta Africana)
El Agite en la Quinta - Champeta Africana
El Agite De La Quinta (Champeta Africana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b47277cdabcebf8178dc1cf2602c86222fed318ad65c8fb271f951d1bdd5744. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZWDW2374500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e44bc5973e8f088a9ea30700282394eed562a552637b553c5adb10467f94d17. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZWDW2374501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7bb82a537b2ea69d51635577584b51f17104ddbf02dd2807f931c8ce2b15e0. 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/QZWDW2374519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc175b82c5808f3e0399659f4638c6fa4da41af3622c206569f0763207185e434. 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/QZWDW2375723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc38b5ecd0c7bb0993ec8562c1908383e1203a941ce34a2dc8898d4abe3b8a2a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:30:10Z), 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/QZWDW2377111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5b5e5e6d0be23256e54eab1bd6e733534cb3a6436b073a2953121e001e1ac6. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QZYFZ2395296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29388f116932e31f927f821070425d2d3edba7db4feb4787b479819b50d566e. 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/QZYFZ2395304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b813ae6a2ec6c393a80d622ec35f5f13042af7d53219af90dc068cc6cd85f70. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZYFZ2395372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10efcc4be0661f5a4c9e4c974b1637bccb0e519aa40b6b1afe61e62521b2a2ab. 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/QZYFZ2467487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d1fc48292781013668acc22cfc535924bdb923696475d2ba70f7dd3e5653e5. 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/QZWDW2454304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8f1aae6e4ac793db245daf4af77631263388e3e3818aea6cc90e47bc46d8bc. 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/QZWDW2536188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624ed09a4fcc75cce1f820447eed49596d00e92c4cdbf600c20d867c75cf2925. 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/QZWDW2465997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ca985cce1dc038940d251e684b0def4928f1dfdbe6d7abbe281d811805f6df. 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/QZZ662455081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ca985cce1dc038940d251e684b0def4928f1dfdbe6d7abbe281d811805f6df. 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/QZZ662455081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf519d9090755eade0472e2f21d9b2c50dac961ffd42db796e12795b075b778b6. 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/GXF9Q2490401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5540232461b93a3197eca37446c9edd3560c4541a2d9d52f6fb12228363758. 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/GBMA22317787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56684c43af0db39cc18c983afe81674fe97df24dc754213982037739b28cc72. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:56:59Z), 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/QZWDW2406635.
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