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 0x8870133501d7dae68d966fc3c764c13d41dae916f106f9f417c101d535cb8c1a. 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/61f22683-784b-4cc8-a216-5d1cbd10b36f.json and https://artists.proofprofile.net/proofs/artist/61f22683-784b-4cc8-a216-5d1cbd10b36f.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 0xe2363eb7e9def8dc928c007f289f6032d0ccc55c083cfe66e4cf8e8e5e0efaa3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USAT22002964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233468f8f2b84f349f15529d03910b4d09edebbdb26806ceddbf1e62dc749bad. 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/USAT22101671.
F U Money (RAP SH!T: Soundtrack From The Max Original Series, S1)
RAP SH!T (Soundtrack: From The Max Original Series, S1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61721ce88f8ab087b4e88248e18dc7f7dd4431c9931d9b5c11c7887ee2825dbc. 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/QM24S2204356.
Temperature (from Insecure: Music From The HBO Original Series, Season 4)
Insecure: Music From The HBO Original Series, Season 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf18baadf3cbcf9f131e538f968aaf2bebff6460db728622ef9ebae0c012d5fe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USAT22001767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeba8bb70fd731c5446d4e4cbcaa3985695033ef10102f65dbd2b764c14bd87e. 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/USA2P2349413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519fbc126b95ac7d75e0da32cb769a22b50a45dba3d5cf94ed1b0a257b1ff0f0. 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/QMBZ92415830.
RAP SH!T: The Mixtape (From the Max Original Series, S2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddd1cebbbbf4c0d85f324971396b98e034a92fa42fb5720e1a7060e741b3bc6. 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/USUG12308440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4340420a0d5526606d9a632e165781be5e34d4783bf374b2e1ae722940734bde. 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/USUM72021140.
Pipe Dreams (from Insecure: Music From The HBO Original Series, Season 5)
Insecure: Music From The HBO Original Series, Season 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2d5c522cc2bcb9e6e103e43da8ed90c14d8411378103aede55b428d776d9f2. 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/USAT22107826.