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 0xb7b6364b95bd0f528d2250216989d7c1d28c13a5c10adfbc1fa6a1fedbca4917. 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/ed4dc3a3-3ec9-43c5-9c69-dbec615f0548.json and https://artists.proofprofile.net/proofs/artist/ed4dc3a3-3ec9-43c5-9c69-dbec615f0548.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 0xa93fa124fa4265066f971aaa4993f51b05163cd2ed707715cba79b6747f92d10. 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/DEY472474835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8528b5459854dbe9ba69919f82b3ecbdccf7ae4f8cd2a0c7e42e38ba7f0b25. 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/DEY472474822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4fe224af36a775db9f5d3d0e196cc3113a19fd95ab1905d7779c4d7406aa22. 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/DEY472474865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf490ff076cbc58612c607e3e1d6f011aabb63d67df6d951fd62df5898690b9b. 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/DEY472474867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f6b9bbe853f6f9f755278f3ea862b45da404e97daaf721a76c20b008c562b0. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:55:19Z), 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/DEY472474586.
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 0xb55486a5569dbb8e97814cd759daece6a7d2568ea8b0a1929654dd73e4cdc297. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEY472474861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7106b972ceecf01b988c455b8afd8c08feb1fa482c32769f6e47d2b3c5c98829. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEY472474862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bdaccd014ee6b7415830d66b0c9a83ebb9553e605f1dd637f2757a5bd57f3a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEY472474863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbbcfe1d1243aaa088c7f59c8ca465a9da7348f5dff9bf1bdb1f7d0ae2b40c7. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEY472474864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3965767cacb76691348144e21f16a0651ba9469f0c7b4511e637e24d518c8c2. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEY472474866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969bf9025f3194ad16239ff7ff721562b51201eca40b57ec17aff94760ea29e7. 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/DEBY72100336.
Breaking The Clouds - Prismode & Solvane Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17a674969133a41f9f7562f71e4c766a4fd700c1f0826444ef1c900ca91fc13. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEBY72100337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6716169355f6e30c73d790e37218d7bb06ed469a4ad0360d4842c6620ea00aac. 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/DEBY72001104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e556a87020ef0727b1de94255324293427605ca35295d1dc705f5dbd0ccd35. 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/DEEC61800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8670ca2f6b6645ef6545868aeb1ed3cac777d42202d23417d4861723fad1b758. 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/DEEC61800010.
Island feat. Caro - Florian Meindl Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae86068042924605beb2cb3a8416fd7abbd8bb4e62ec690de776620a22bccfab. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEEC61000037.
Right Here With Me - Heinrichs & Hirtenfellner Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d6bfab3117f9b47668bcd61d0178a37213726c7ebc443be19343a562c6efe1. 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/DEEC61000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf913644d95d0e810e761be1bde4386da6888e5a039cd32208280aff272d1c32a. 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/DEY472372693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4b6a0e09652b9043606c384d35a459ff540317c179c692c9e3d3f5541d56af. 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/DEBY72100813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ab22cd7acd2f219eb7f21b14dc4c894c4fb458558505673620d83ab330f46f. 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/DEQ022106145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ddf15eb524a0fd0b2f4d75a17b3da5c7c2c917d63955592a420237d1e8a891. 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/DEQ022106146.