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 0xdd3ecdfd11b4524acf08d6bbaf295f58489c456e6ae6ff8e2b62a1defb6f0327. 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/fb93be9a-37bc-4459-ba22-bc7484dbb019.json and https://artists.proofprofile.net/proofs/artist/fb93be9a-37bc-4459-ba22-bc7484dbb019.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 0x34dc74531d5e142792536763a22fdde9181b76b318b784463230fbc5867de37e. 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/GBTEZ1300572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b6ba115a80408174c746e92885091529b7b2866c193f171f9cfe80f4a1c7ef. 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/DEY472178587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ef999bc9a27019041ea144f2ae2b2f5b72ee395f8065c5f5c302b82eaaf6db. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEY472178586.
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 0x22e72fcd665984ab927574701fc55e1cc9d763dfddbfd8efbc5d4b5e17c2d86f. 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/DEH742176595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b134006fc4a0554644db1ce695a3ad13c39dc3449ba341aec40fb451938a58a. 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/DEU672001812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f79002dd07f6ca2199235712b5d9ebed98449c3a4c7e7afbacaaab9516364b. 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/AUDCB1701541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034f47ad12ee5643b565a07454c7eaa178a8911ab6544c0698c0270d5ae8e9e1. 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/GBKQU1974676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde44f3d38f849a11f5b63261d01136d134316074f86bff0f8fb9c52a7233f0e. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-21T23:41:13Z), 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/UK84Q1800164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fa11200fa948d63871bdb0d6068b675c70445676113ad71bd06bb8de84e3e5. 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/DESH41800317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563dbc8fd2b5868338d4bd6d446c38ae874d46ae24d3bb5ec458fc928de95e9e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEH741716966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a6b93c1e1cedf350ddcc02a1dd4232d56d272f24cae804004a0119f9f6a3e8. 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/GBJAJ1700911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149c22257cfa086ef103f6b7486d495014331b3b8b1271945601f749c93bee7d. 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/GBJAJ1700914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0662372966171b15ca227e9426833825bf15c60c031d34e82406f589c0ebc57. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBJAJ1700913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452de2bdb118a60f1b62f5a6398aaa81e567fbbef750e18386556f6e156d97a5. 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/DESH41700256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5303c12dea48b629d6a54f821a29e3efe40ef0fb5c228783876dd8afd200466. 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/DESH41700257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa482a07c094e231f69388ac68f7ce75c7d6626f439a7ce09a5a82c665e10e203. 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/FR2X41797934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe007b29686c719218ec8b998bcfb1e26cb658b7e533f0662e82420061af8c72. 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/GBJAJ1700080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85b753214e5509ce7c537950626c1bd43369898770cdebd8804ead6715d812b. 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/QMSNZ1601399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5dc544157a58bc8f5ceb726b4be9ccfa2ed9d4896d04a99b63d3a3e4873c4f0. 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/DESH41500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3db661666c2549282b381c809e3e8dd367d3a88ba1796258f90dfe7b3f97669. 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/GBGEY1200031.
Pure Salinas, Vol. 5 (Compiled by DJ Zappi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde815443c0fd2cf686a3fa8ee6dc93a0c2a6538139a0b71acf2e64acad2c416c. 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/DEH741307073.