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 0x945fe0ab5ea7105c1ce08832d2d2f197d0bd1d0ed184f20a6081a29b9bf3ced6. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee9746ef-293c-4c04-947e-e4797bbc2adb.json and https://artists.proofprofile.net/proofs/artist/ee9746ef-293c-4c04-947e-e4797bbc2adb.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 0x5261e5e95349acb009cdb1a0dc5b08118f0a125115d1254892e08196b3242aea. 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/QM9AA1826397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79de8e41003fcace54f07010e2800441faaf024fbf69df0432c89ef184e924fd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM9AA1826394.
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 0xb113eec851defcc909e8dd566c9b3879168561ccab35034d99e8cd00ecf90907. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QM9AA1826396.
Unearthed the Unreleased Collection, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9fb5de514b3f6bd8a63786c900bd85b7bbf40a677f9908d293286e480eb876. 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/TCABC1118698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2d327de321e9b8fe3dc6ac2d6ca990ca74ba1dc34754dc78571369012c503c. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/TCABC1118702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb386245f6cb74a64b13ee41d6360ee13f6d0e2cfb1e85fc78898bbc693ed0260. 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/USTC80984372.
Spiritual Awakening (feat. Matthew Bracey & K-Drama)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a647134b51e53ad2eacee08863b680b2a9d1dfd921467519d61a0cfc03d0c5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USTC80984336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428de50b7eadae7ada40822732afffec2bdb126880f07448241df6f66279ccec. 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/USY282009668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5251869a3fe3080db10ebb75e0830993303565ffd56d05b723b2831c0429b97. 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/USCGH2118217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524c76f7cf7d76c3bd9fa9adc8f83307b69d0d72258ec141266e45ecad4ab1a7. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:33:53Z), 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/USL4R2050852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8873c5356ccb0d1062917aac8c92888d1472d8efc1d057c896caf45ddd069adc. 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/USHM92080457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf552d7cf9721a3730b3f77988d98c2a733139c35805bc33d83dc46ac901d17f7. 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/USFVJ1000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227b537676f0176fefa34f4c4e551e8fa25ba8914b06f500175e6c1db3a35580. 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/USFVJ1000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f98bc81180f9b43dfd6bfa6bc8a26ab16b846499693e32f5430b929168743c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USFVJ1000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd885df40fba47dbefebd6cbd4a33841e943f401bba01f5e7fbf222487a4cc1. 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/USHM91976725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74e0a85e2be3172fdea56311cbf876341cf0e52c9fed87bc6f306a0a573c83b. 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/USHM81616587.