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 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 0x599ebc08b2f62d0b12945c51e59e8ab1bd7418597df57f298d6a7f7518767fc9. 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/7f6d3295-01c3-4804-8618-6b117bc3f270.json and https://artists.proofprofile.net/proofs/artist/7f6d3295-01c3-4804-8618-6b117bc3f270.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 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 0x065b7751b4701049e2196d2e284421def9adb8a3b4700d965b1e0c0464678fad. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USA2P1931491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2307e1d9dbf93132eb93515402996ded41e03a6dc9794fcfe0d33f08c07f7d70. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USA2P1939170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd477fa0bd0c25f6beac8642fb6b319ad26dd0f064314e303776dd4027a02fdfd. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZHNB2070164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913f4a634c79f997f8b47b41e1d94737e811db8def7743c0cc8cd09e5136024e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNWY2079265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9e3a005514ccaf8d91d73c3ce6fccaa5446940000976a7256e886bdd4c717b. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZMEQ2120980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b23acf291f6aee574a55da5cc623cba17ec2cdc5ace45d4d0a4b2d45ea3a0ee. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZK6P2240287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0124e34b00a77358037d5af7e190b6fc4c4265bad39ecc14b67ac5d860363a8. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZNWS2245570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b0cb912ba6c454ca38d44b369317a8ee4ef2dbabbe735ecf669862ff604b4a. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZTAU2243105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8130b5bb4028e7c900044a67d22239f77907704c69edf5b98b6cf2c1362fdb30. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTB82213096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e28061e8861453490035249cae5545eb1cdba3aa0237ce3bb97a64e83da008. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZDA52386668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d6306cbbd36ab26f0255201ffe1a117ade252a2863585592351578b7e6e6ce. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZHN92300409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379aa3811dc4bfe28bcf0c7000a80bb361c864b4e1d67f15207843ec45791335. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6K2316700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd403055934ce28964e2440c2d978909a58684974f0199993c8a33daa2149f082. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZNWS2385423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce5851d5d85c092c77688928164c9ffa8ec78accea785eb0bd6724800535768. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZRP52320068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e134cca538387943ea7f8935011e3d43f7cb945c874044529abf2179f6a982d. 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/QZTB42333411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951bdcda5514be4ce27975febc34acfcbc1c5dadaed00179fdd9f6dc3962a49c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZTBF2352512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaec17e4443dc976a6fa82315fa609b10436e93f5cc599670c7329d658fce7d7. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QZWFN2355746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c31629aa12fe16b94dc8ae986fd1838909da8ae3da9329a6d4fc0e9074f9444. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAU2447246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a424f4d6b7277174d10cb0e8d3194a11c0299b03a6ca01912dd6872d152d68. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZTBD2425856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0af7dac805e55f3c38e3c93dbfc584082fc9a4d41d2ce64298f63e8aa8b455. 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/QZES72424447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3793dfff1ff264aae002a13cee5a9552779b566e5ad5c2acd65fac970fb0def. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZK6Q2481078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2878f2a95917a8ed4d618be5a8481973dd285a847d4edeb5a7db01fb81e81f68. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZPEW2454811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438f46e5052047fb88a994780466899af99a50f3c7045a4d04a4272de0e612b2. 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/QZZ782473977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768664264d5ea17772eccf26c0de9441ffceaab568f8568dd1eb14ee6d69269e. 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/QT3EX2429798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12406d2d80e92cf5d1b2bd9fa70c3546a007e2fd9bd1ea42639ccd026d42e59. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZVEM2537419.
the thoughts that keep me up at night (deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5ac67e0bee14bc9a7549b7ef2b31288a7ee047701d16c11b4caee4b1f0b96f. 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/GBKQU2242619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13501a0b54aea6241a73748ce94dfe3385788f6624cbdfb98a0cb1616acbe2e8. 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/CA5KR2315757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ba25ec5aac31635561daff5945ef81555542b38761fe64dd2879e43e76a2bb. 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/GBKQU2234053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761eb84368d0f8d4c2ed3eea3edf8564329f36bdd3b4f247c4da6b831dd3c6dd. 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/GBKQU2243479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac8e327f97885d21265c9eea40beada02b808c7fc4d505f3e99a84819b5a6d2. 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/GBKQU2243483.
Back To My Love - Far Out Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c3ade2afa932c7a8e32db328f096ecf8eb0813945065e8f5155517a433f0d1. 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/GBKQU2243480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772d566e7ffa4103851272fffb66062918288ea19dbab1c82b3ca889bde39b0d. 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/GBKQU2243484.