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 0xb518cfb0b0ebee990971cc0e6875504ddf7efad1d5d2f3b98a26d3aecc04942c. 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/171517f5-41bd-4230-b438-ee2dbd90d191.json and https://artists.proofprofile.net/proofs/artist/171517f5-41bd-4230-b438-ee2dbd90d191.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 0xede5780d7942c19af716927321b0c10d3b4aa1c223f736d46989c5a85e97d14f. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/QZTB92321887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec15ff002b3b8391c83a5ef2553d5a9fde37b393b92717a42f72c64bf5472ee1. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZTBB2324797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778b3413acc46ed5e4d5db610ab2d2f0b6b0665f371234d9dc87d724493883a1. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QMFMG2326160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b179bbae1554ae8e8f505c690c9ec8e716f6cc03f8b2d983a15d06000c1ec2d. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/QZPEW2405638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24991908038ca8a611998f6896510d87cf5e878b69c5e7b2410d12929f33e84f. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/QZPEW2449305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd02869825e837b6190eb3312a7c3e453b21599dab62b08cf2d4730c2e705701. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/QT2VB2491794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb9cade1c261c17afe2cee3e9133fbf69370bb5d1c462a699060cbbbf4d76b0. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/QT2VB2491817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff15f00dfa313fc033c03f1ae5b3e2a32ebcda6d4898b1c0bdc26f2154e76d55. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QT2VB2491793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf079136c3b592a1a2b8e62a69f23e47286c412e329cddac2bb16ac6dd6a6b2c. 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/QT2VB2494486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641b3e4ade1f4242b43f596912575237db95e31461f09909b6dce2b3b9f0b17c. 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/QT2VB2494482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254c2b544cd25363bf841eb34fe3e015e3f25c234b448237d7240a8e362e94db. 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/QT2VB2494484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7548b6d56f1a72b45eb892224125dd444888911e75b96707db09a90b24a0de8f. 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/QT2VB2494480.
i'm sinking deeper everyday (slowed + reverb)
i'll never forget this moment (slowed + reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bc4a733783b6f8c1a209bd02272b3b0f5680bc386c36323ba2cf6820b407cc. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QT2VB2494481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bc4a733783b6f8c1a209bd02272b3b0f5680bc386c36323ba2cf6820b407cc. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QT2VB2494481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802c9d32f9480a9bf5746975c8d79c838e43ddc8e1982d8bed0cab972b0790d0. 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/QZVEM2532791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36bc6713e1cb397c1305b48534ecb2a7805b57f589a960aa1fca3f4b68e20c2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZVEM2532762.
everyday is the same without you (slowed + reverb)
everyday is the same without you (sped up)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4eb13251f1eb901d5c898481e2f0f592e4112381d3494a7c7b503466f698dc6. 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/QT4K32541207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe049600b06d396c7aaffb3e32ccbae4e48f4e52e0d0174ef558404b906ce9924. 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/QT4K32541208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ca0d5f0b8024cb074a02db85ee2d09030e26fa3ea3991a6a5c900f2e68fb05. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QT4K42558765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505e204fddc3644627ef4f52d7f7615f13647e78b4bc61c30df44cb45442ce13. 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/QT4K42558766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8955cf9e2b7ede89fd8531363ab0a8059c51673f2bf94f3eb898b60eb72dfb45. 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/QT4K42558767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6c472751172e4a364e58d1be6a4973bb61989d196729192fbb99a7c3e35d3d. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QT4K42558768.