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 0xcf9d5fed1f6e4850401ec53f7e804e3195a630b299b1bb96963cbf70a51aff95. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aaa6dc1f-a204-4c55-9e9a-20195f66c201.json and https://artists.proofprofile.net/proofs/artist/aaa6dc1f-a204-4c55-9e9a-20195f66c201.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kiss the Planet - Alex Schmidt Vocal Mix
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 0x184c410f43817b68223e06e88b0d5357391e9acb48056c43ce8b0a374301d247. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/DEMS91500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36d134aefdc93545b359eb3b724dac1e7efd63a697acd3d2d65db0500c6a460. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/DEH741647046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db96a970d2b170ab57cba58623c39326a710a87723ac822a207365c4bb7ed86. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEH741804166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575b5c3c0b8b1bc07df090d77be062c3dba1050636949d96b56410c1528ebcf6. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/DEH741815573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66dc10debc8f186dd47e9cc8f76a25ebc4b6df69e3b7cd7323254b98a8e62b0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEH741900119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0250d727540ad86b6f027404776833bfbd0b5b605b4d0664a691818dad2f31d6. 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/DEH741918322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461fb61cd8cd77378f24d629aea5b27a3142570b7cc47aa1666bf4d27625b958. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/DEH742000425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8badf51aeff488ad437e4bfd17921b322f775a7a3268b66eeb465f85a76ed147. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DEH742008302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f95401ec7b5f218e0acad2cab2e3974ca60bfadd64a89d8aeedfeeeb8cf2ff. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEH742032825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf094525bf1794b5fa4b1be3ab16caac6f15b9f24b8fc5df5cf7efe885ce5a89b. 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/DEH742050257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f6f87e4381206f061016befb462e62e503fb663509449204eb7cd2212e52fc. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEH742153898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27beca3d8e8727d8983db8ac3355de0b4168425814b39a753c4a53cb97cc2aa4. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEH742170910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495dc2280352a40f36681a471c55e0bb32cb7d4a20183e167c4de31fee0f2ba6. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DEH742177794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe891865d87cbf647c9d25d6e9171834d9921cdc336112b082ea85fa67b0b821d. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEH742214717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa541981e7b01fc4de43b4844fc2b15e503abcf5459e0f95ca30c4dd26bf642cc. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEH742304888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07a3159d9532803a9c2543ad2024f0159d99ab174d52180444369b2087904ae. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/DEH742319343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e30166be4c8268d69023dc870f00ce4529fb1afb4dc89ae6410ab9a612a7521. 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/DEA312301079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc62404586d35f22f6c140dc5821fb027c0d23e94e169178f219c266a1f9fe5a. 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/DEA312301081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edbbc5377810e91d83dda9df3a9d6f1da430bab4f0ac3dd0876286b803527e9. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEH742400197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8224729d47e516194750e7b6f147c6916e83fcfb11cac01b48330e5539cfdc25. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/DEH742409456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963aa1696439f3d095019ce7f6d12e26a24929418e63cdc4609c89a4963f90f7. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/DEH742409455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2835e711a00f3cdd4150e42a4b796ffdab9ec1eafa7769bffd7961741e9b13c8. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/DEH742432399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe07316c142e366583e3176589a05c5b44d06bff6fbeeacde63ac37c05872208. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/DEH742441178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ff11aace2644b611153af40ce4821fe4c466ed74a5f213ed5d17fa49d80e2d. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/DEH742505739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae36cb2c5298a0f667675516ea53996141b4537f5b2d667817c354e1e6b37a54. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/DEH742525260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed53f6655746e999678057e06d55518ba8ee316cf9c6cbcab979593bacf5365d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/DEH742525261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4e6269de51f8117d501328432128e0f0dd283d70c4f062ad76826383c3d854. 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/DEA312300569.
Papa Was A Rollin' Stone (Stereolink Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc586b4e135aad5d7b4114f2c338327f4f817c6e30a6f3051aa6a79cc925a8fe6. 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/DEA312300571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd60f0df2cdaf83ddd37b635bb56fe5bb50cafc932c2ac1f6eb185c7af94e86. 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/DEKB72067024.
Fading Memories - Mario Beck Slaphouse Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde6ebd3b9797a91befb191d0c76b3ab147fd2fbf384eb4e2e2688709359bcb0. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEAR42113391.