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 0xe583eba840ab6065052b2b9a927eb012c5ba30fb89af9830fd2a6384e9e4d1c3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdd3c112-27a3-4f9e-a34f-a28a2efd0767.json and https://artists.proofprofile.net/proofs/artist/cdd3c112-27a3-4f9e-a34f-a28a2efd0767.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 0x5788eb5cfef3c95e62ef96044fdbe44195b4ab3c7d28082a9ebfc8cb6101ae43. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZGLS1994284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ea4621442f75b15baefca930ad3c2b81582987a024c1ff9edf612c44bdbe65. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZGLS1994288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53669401a31033ab00bf341d56d0d0334611610647fe8e0fb6374dc5a2951cc4. 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/QZGLS1994292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebda68e935d509e3e1fd706ab855746476fd37c20ff39110296d7d36853f42d. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZGLS1989916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6e62ca9f67eac175e6612c8252773c01088a80a73d15f7798d5245e38b877a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZGLS1989919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25411749f41383c0e130baaf0b8c98fa7dd16ca62941ca09af72c7590504f57. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZGLS1989920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97911cb373aa2ca75c76f746e9cd201b18c033902e285f979239d150988ee40. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:02:17Z), 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/QZGLS1989921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4ed083a1bf02e9121e710e122972e34b5fd80f5d5d5612b7dd15fe32003576. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:30:56Z), 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/QZGLS1989925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04896eacef9737332ca88317880ead79c735e20ca318982539a5b5290a670b0. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZGLS1991802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d72874ac44845dce277a0a58053e1dcbe71235f35b0ea5557c4843a4952f9f. 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/QZGLS1991804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c98321125d723d9b24bd220bdef30287c6b1d1c59f765296d787e964faf9726. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZGLS1991805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d91141ef9716f7db9501de9411a5d421c5b2fc8181564c8a2485bad0115ebe. 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/QZGLS1991808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1e28a86ffefa2d4953b745d125cca5a62fdd95623b1c3e933ba8569e403a27. 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/QZGLS1991809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a878330596ec43401a13e919c1fca897cf818890184b6dac8ea1a890b1cc26. 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/QZGLS1991810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a40351e5bc7cdcbc7d9aa502c4f62442d7332116d5605432aca01e84d14897a. Chain 2 (Bitcoin): anchored in block 957565 (2026-07-11T12:18:39Z), 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/QZGLS1991811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7b132f068bdcccbf7af65e4fe5763ceba4c82caabb31c73ddb96f7d86a650e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZGLM1908558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a755c7de89dbb017b2ba6520c290093bb4fc25ffb0befddfe7ab07bc5ffaef3. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZHZ52097977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77f20f3b88c97dd25b662e09aa897921912470d43555adcaae267617b2f22b1. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZNJV2054710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd111f6ff7a9ddff6fb8fa67d6fd059aa2e357f1ddc4c33611210263263d7e6. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:31:11Z), 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/US7VG2109053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba31efb05d09bdec0f460b3f219658122d4217d607d7f9159324249a17e162ef. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZHZ62166169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f63363560eb6954867625334e3f55f82f5caf8bdbf51ce2573cf227b9645cad. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:16:11Z), 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/QZHZ62166170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f15d3b4fd4c91deafd49dc3ea4eff5b61b0a54df5749eb542301bd133f24996. 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/QZHZ62166171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8917265ba33061b3def5da5eff45173870b72c67cf8e5e3b983018dac29d08f9. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/QZHZ62166172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ad2dd1ab274e0fbc61042b727c31fc15902a98f49c128d88a0eea934b67991. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHZ62166173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396346e39c5a16a21dbb45e1405955a5fce25a9ee51eaf8e294fbc4ccf2be96c. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZHZ62166174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6532dd0f4039c1fc6ad41a179e5ff7674614430d4248e00e11b2fd0f457d818. 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/QZHZ62166175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b677d1f5191e90e263d1d29207404985d5f85f6d6c269a3e106fd3e774b298. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZHZ62166179.
Las Tres Soltecas: Soledad/ Adelaida/ Teresita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7caa237fb4c4ac5e0aa11c52c65d69cfe16a98c7b1272885dbe2017606ff8a2. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZGLS2393430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04328bad23d3d74508f235779019f8bae2fafd9bba1d659f5b7ba50b5b90a64c. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZNJX2445516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5d39fd752cc3773d4b051a60d127a2b18deccba719c06e21253e6ece77cca7. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZTPX2484294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f558d5666b3ee7f31dedb13420c36b2bdc57899cd8f4d3236883c27a6ee5bc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZTPX2484295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92873496b7f8992aaaee70ff31427f06229df23b095474461051b66356f44bc. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZTPX2484296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743267373d0cc2f771357097481b5e5cf3c40eba052d33ac513ead0466164682. 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/SE6XY2515604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ab18ae9b1bc98fd95c673e7fa1b66eb469d90c1d6355e0950e75373ab0d45c. 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/QZXYG2504058.