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 0x1bece31dc3efd1274ee0167fdb6fc30d51ff656c1a6cc405865aec3b27e15680. 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/158b19ef-3f94-42f0-9f72-f12b58449257.json and https://artists.proofprofile.net/proofs/artist/158b19ef-3f94-42f0-9f72-f12b58449257.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Avirah D'Eretz Yisroel 1 אוירא דארץ ישראל
Avirah D'Eretz Yisroel 2 אוירא דארץ ישראל
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 0xe89355cf68750deec3f7728f121e5fe654e065834d95321b85d43c00a8d83f53. 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/QZTAU2315151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8436300515b8933aa96a772c43b6c4cf2dd38127fc47bc1c9c0597121311d0. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZNWQ2419076.
Venohapoch, Mishenechnas, Vatosef Esther
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2b18e810f7158117b1d842b8d48e5b540390eb9f6a3eb13f064b3bec956eb6. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZNWQ2419077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203db77a61bbeb4902af9be1b0a6ba39d895c81c4b5f1a7ad6c3c429840b913d. 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/QZNWQ2419078.
Gevald'zeh, Luvoi El Hamelech, Venohapoch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec067e2a54c97096faa7edb20e93f13154e78b6f8ddf909da54d41bdbc53664. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWQ2419079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b849e1bddee45a194079166eda84779b11c3a520c7624ec7f7f2a4fbce198bf. 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/QZNWQ2419080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1cba2d0be32084576f78f65a180dbe6b608b9354c5a6b44f5f98c40507fe76. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZNWQ2419081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999955a0d233c8a612ede3e526b6903e363c6480ecab02a1c6d1332da33ee010. 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/QZNWQ2419083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8320d56d7503a1185bb71edb6227ef902db17153db66c69d2f56132b6ad29746. 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/QZNWQ2419084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef7c94255d26f8307513a8907dd48914ef8ab9178063fd70470e24ef4e86e05. 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/QZNWQ2419087.
Borchi, Lech El Hamelech, Hamelech Basudeh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c9324582df09b1204a2017c190f41a7160d58e104d4d41fb401187ab201d85. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWQ2419093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5219ac68da94f72115f5e435a9034078ac3e28e19e488d307945c795038b4f55. 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/QZES72588482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804acce5d3e7a77ec38cc33f022386d7cf361c6aed9e52359d968c647067c3af. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHN52544083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dee75669071d143aaad735f7ed728b4449ac9d9d9b703d6e7d477d3cafb3fda. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/QZES62543813.
Holy Moments 4: Slach Luni - הייליגע מינוטן 4: סלח לנו
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b691760c8191880a539b8f781e22e250ef91b810a485e744f2036d9ea70c6a6. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZZ7W2538594.
Holy Moments 4: Ki Hinei Kachomer - הייליגע מינוטן 4: כי הנה כחומר
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f6d681f8ae1537ecb171bae32bf4a0ed1abf9de69985c500a1c48537954aea. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QT3EZ2554960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51100754c9a845628c8ef2b8ecae77e03234ffe96881f50f0edbf9e7b5b317cc. 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/QZK6N2285491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c509625f25953190b46d648ac7e1130422b28c8c97f6f877f5443a61619b315. 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/QZTB82310432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596573d91624a3d62a2107bddf721504b64ca665d4685873a04da1e2e366636d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USJ3V1869496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640a3d4154678de9fd88e5fde0a7d506243594ebf51bdbed8cc3b54f7f9c3021. 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/DELJ81905561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb447f102963905f92da3dacf8a3cf103ca36c9778e7a62ad443a087c50fdb6e8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZK6J2420436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57ea378ef9cc68719601d803bf6e46847ce53085beb0e998f32e12a7a5dded4. 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/QZES92510863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5319c927f804f1de29d7e4d985bdbd886cdf312731c934d378717203d0687d2d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNWX2508664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3e7891531a45651a2c9e55892f8f6b0df4194457e3b2f6de91845cb4d9ad8f. 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/QZNWX2508670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f547da84637611039855798267e5773ff162986540147e8e5a50d28d6c65e6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWX2508671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b77801a651c374398404a5e0be11dae4efdc1c3d1d0c78bef46b6a69f87cbc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNWX2508675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d51d4180a7eda7bfd042630a6ac308dd9cb7adf34b32729669d1f180eab4964. 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/QZTAW2398526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e656d69c72246dbc5f1eaa9801ba7b41008c8d257e490e19ac2d103736148ed. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZNWX2508665.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e73c96709e8f4f0ab09050b155dc73d7a1952f65086ff8051479c95cf3dff2. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZNWX2508666.