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 0x94f5732330b0f912c4861417629ea6f31eb92068533af9d732471d2fb246d87e. 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/bab5f009-77f0-4db8-a8f9-2821eaeca11c.json and https://artists.proofprofile.net/proofs/artist/bab5f009-77f0-4db8-a8f9-2821eaeca11c.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 0xd65380889579869f72935d41d7ec92394245851af01f1ccd9f7ab21088954049. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:42:20Z), 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/GBSMU8382508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054f550fce5e8a1b1e93a7ab15addb4d49e864557bc74ad5e5114d001df1abe6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:41:09Z), 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/DEXO32235407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7544ca9d2e8767446a5270b3e7c379a192806a8bc02b491798ac12bf23daf5. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GXBDT2319109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80d035b89de1763356b263b16c22c1e6c903b255331c3fe535e0266be999583. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:55:00Z), 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/GX8KD2465108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfdeb515685c70ab729c603fcbc962581b50398250f1dd90c1fc2595263ec3e. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/DEXN92448586.
Anxiety (feat. D-Anna) [Sped Up & Slowed + Reverb]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc22eb78214bf4cb3fe07dc94539fe5d25cbe8b9f555617de935b4b2ff53b973. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/BK4DA2465532.
Still Dancing (Sped Up & Slowed + Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bce4da44cde372d751e140e1bb1499644f879cc97cd51cf6756d263b7020460. 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/GX38U2543157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3785ce6708d08c714862b150ca51f2a4da59bed9b3475a09dfec835aa5c1c3d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GX38U2595672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243d319e53c6451a119b0e9f579a090bf5607ac63890c652a2ef4b0f5ce4fbcd. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/GX4R52596421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7d9d1c6c4a690e8758382c4076e1f7011b74158029ddf91fbb128690a138b4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEXN82549080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda28f3a777f8c2b5a111f0730b6bef7f835004047bd415681821f94778a98aa4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEXN92526110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499c9959258824337129813415adf23487c36f24e1bde2263618017d5f926422. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/BKRQH2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656979612cadf48e3fa7897b96d042d27fe48695aa779fc7dce934da04fb7836. 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/GX4R52243385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0685f3581741b68e187a442a8b8d2d93c1b246c9dc229f02300b6c5e473d9c9e. 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/GX8KD2282655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0152a40f3fc3a15326974677a79fbdacf7eb49e8c32b6f71aaa6ce2d17a147ef. 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/BX6IQ2400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26dd4025db802d159907e3fa9d6627dea3ade7caf0e6e305350e681d1d667e8. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:09:51Z), 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/GX5MX2376874.
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