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 0xa62a74d5c73d3e66a52bdaee735962e488b76598885179f442e0444f5aa70349. 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/ecf4f8d9-15e2-4cda-b920-cfc366041c63.json and https://artists.proofprofile.net/proofs/artist/ecf4f8d9-15e2-4cda-b920-cfc366041c63.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 0x9b0dccab8866424b31cb05ecd0c7a7b8f9a2a832b357f47e2b275a5bcbe4d31b. 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/QZNFJ2119474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf624d95abe69e25f34856534e02c09b4737b0b9da55a0ea01592a31bdc404cf. 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/QZNFJ2120670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39f8046781820ae95c6ede7969d210acaa9fc703ccc078524397b605c03343e. 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/QZNFJ2120671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8fbb37632ece3bf12692005c6e8232874c52d485f820376888115a01c6ce26. 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/QZNFJ2120674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de0c3b52d645cd59030d0b2ea4495f499349726dec191561051445f9530564f. 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/QZNFJ2120675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf074ca8a4ded14137b8608523831083a05e99f50e86bab88e2a70339d2768ca5. 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/QZNFJ2120677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1557ef3ca4179b1940419c20ab0f31dd6c375e73ed6dee08520031b0de0da74e. 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/QZNFJ2120679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2340f8a11c66cc3c5efd482daa0edf2ef4159a1a811a636205813eecd8f4dd. 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/QZNFJ2120680.
La Empresa Music Presenta: Volando (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555b328d86a3b09cc1010e9fd05006a73714270bf22abef8f733b65d2a238409. 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/QZNFJ2300929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482bdcd93a2a1a8156ec74b1bb63cc3d9fcb0d72c91d9dcfd52602384444b063. 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/USA2P2310910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a95e6adb602cb260deb686b8a208a1504390ad8e7ef6eff2ef2ed5bab3db17. 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/QZNFJ2204895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602e150466dd7ae957e8491ee31cf772c394aa089b166a3940868b78653a2772. 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/QZNFJ2200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1599fd63420c2f559d06fbd9a2025b6970a5ecaf8a69135e68fb65145557038. 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/QZNFJ2118107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae2a7059d8ea3c78293d485bc0565ddea88fb03c3dc34fe73f02046a914bc96. 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/QZNFJ2111442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9facb69716a5afdf7d459e815cbcc1745b510d4c881d3f9e2b16eb7d234bf56c. 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/QM6DC2098576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10b85ad721a3d5c6909787f6874c48e46ec7d846178f085bac426580a16000e. 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/USA2P2503678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973efac9e45ea9020c160a26f9e000d47252bc71522e2af19af3d04316183b53. 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/USA2P2503679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f64f17f7e541742ae600b93bcda60730ca7fa2506f8b43059dba1aa77500f3e. 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/USA2P2503680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7d605017a542aff16dae06cc268e56e48f5711a7b70719a1f43ccda1ebb200. 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/USA2P2503681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18eea0358761ddc9f9878280dc03143359e74f880434866d586b2d977d91bdc. 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/USA2P2461524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd5c3e62e73290c05b31efa5bd8f727436bcd000cfa80d26f01575a0a92c1df. 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/USA2P2403332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8a67486ba85a159370915c9c64cbe31c6656171cbe6f9ba12dd726abfd9385. 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/USA2P2465387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ddfb0994e9982b1c8689bdf841234677453d33d97090244401954c2c27c341. 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/QM6DC2098124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241748ac7c08f23015eb0da05624b5e7ff67c7e75a68dbb754a540636d0dd9e9. 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/QM6DC2098125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68a2a6d5eb4482b0bb3b05ace42ed513556035912d636f16e379498019340aa. 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/QM6DC2098128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d360702a36f7a4e96def9d9749ee51cf50c3d0f66448ecbcc14a31c2015965d. 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/BK4DA2427353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7700557ac13a760d74e9e7abaa08ab2b96d5f95f70ccb2341c815f79a2e85e4. 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/BK4DA2427354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c14ee56fdc71456b858361b20bf25832ed2c55e22805c32ec07b4ec284b8500. 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/BK4DA2427355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907ffb429af74d08026605bd06fda147b51a8b980b4e1abc0d3bef2a5ef02b16. 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/BK4DA2427356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bc7a6345804db7460fbeeb2cd95c30042adbed59896740ba80b49134c898ce. 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/BK4DA2427357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a69d2e2eb0c1e8e12b7e3f4be335cdd27b305f653caf534eaee55d77e59d87. 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/BK4DA2416845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26e11b0d19bd437cb673e3029bf79af969856f80b2ac974c933efdb773b83a5. 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/QZNFJ2118724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1599fd63420c2f559d06fbd9a2025b6970a5ecaf8a69135e68fb65145557038. 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/QZNFJ2118107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae2a7059d8ea3c78293d485bc0565ddea88fb03c3dc34fe73f02046a914bc96. 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/QZNFJ2111442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0f35a7a731eccc754dd0c14c1c2a4cf5d5b82bc06214297d9efec162083bc76. 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/QZNFJ2104510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9facb69716a5afdf7d459e815cbcc1745b510d4c881d3f9e2b16eb7d234bf56c. 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/QM6DC2098576.