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 0x2306422a39491ad4ae71594bc53ec2223a9f9756f3d1700898faf0c0bf5ba9d4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29758c1d-4257-4abe-a591-8e4671563695.json and https://artists.proofprofile.net/proofs/artist/29758c1d-4257-4abe-a591-8e4671563695.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 0x5fce58e2fc21c486e77c7b8d46fd18590d06da879521bc68dd2a6549e3c3cef6. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/AUUM71700773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edbe5e048cb4b0293f09e7c3806800666a994c22f7a3443f00fd80113f1c95c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/AUUM71700777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31aaa4d9c440ebfb5a4944a6ee489e8df980714342641fc589a39be6bbd75c1b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/AUUM71700147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89557985fda3d0a88c4a53d3b186f773b3bcdebed6d34abd4dff091cc576884b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AUUM71700770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1c8904f0acd56988bd4acf077083022284a5c75e3b32d619e45e8aa64285d1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUUM71700771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28b4789309e7b122bf8d04a6c8f7861203ac38d1912e8d11f28d7f3de97e146. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AUFE41400002.
A Place That I Don't Know (Grey Ghost Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aa6e600ac24fbaf4e97a0560abe979e5cad365becb177cf15acda5b49c6515. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/AUUM71900894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e10e106b5cf9508543710794c92039d332c89f2a8eb8cc584931d420482681. 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/AUUM72000250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4a285af1333599835e4838bccdaefce9593b8e9706a6395aa69b01411fad06. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/AUUM72000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4a285af1333599835e4838bccdaefce9593b8e9706a6395aa69b01411fad06. 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/AUUM72000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bf9f687fed54fa39a39497020585a2b1b73817ba06c7a7f0340aa40aeb196f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/AUUM72000303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1d8116e8a710c1c342f74c50bca4f0d4c0a40a7c8ac177e488212122ab97e4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUUM72000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb7e5a866c446acdaf257df623920e65c58f4b924fef0cb3a72e4fe0d502155. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/AUUM72000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aa6e600ac24fbaf4e97a0560abe979e5cad365becb177cf15acda5b49c6515. 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/AUUM71900894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1622cb2612bcd29bb6a31cab9fe3a51d1a414e180f9ccb2a9f19541432c61a3f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AUUM72000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4a285af1333599835e4838bccdaefce9593b8e9706a6395aa69b01411fad06. 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/AUUM72000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f6c29d16033d986ec04470c3403bb0d971a6020dfc4405469df065c2b0def6. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/AUUM72000302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bf9f687fed54fa39a39497020585a2b1b73817ba06c7a7f0340aa40aeb196f. 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/AUUM72000303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb7e5a866c446acdaf257df623920e65c58f4b924fef0cb3a72e4fe0d502155. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/AUUM72000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1622cb2612bcd29bb6a31cab9fe3a51d1a414e180f9ccb2a9f19541432c61a3f. 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/AUUM72000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc370ca2b4ad9bad9bd566171cca9c14bb51143748671b0c8167615d55107f18f. 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/AUUM72000309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4906924d0b14effe32fb686baf47f4f65de3273ef47e4c8cc09933c643607ee. 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/AUUM72000310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe244a6d90f62affdffa2c59322197c5d64be2f4a7c9de472167080c744f5455d. 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/AUAB02100197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95764526db5b2821dc09dbdddd6dac98a5458e64b2371f0d5cce41f4959b0ab3. 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/AUUM72100413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e10e106b5cf9508543710794c92039d332c89f2a8eb8cc584931d420482681. 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/AUUM72000250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17674d1fb7c0b3c2dee02b3a5ab9b3997fd67b819fbda4324d17188ff336b707. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/AUMEV2459531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f62488b5a33aabc4826c091920e2c770a7a317315cbea98232bbfc21ae8597. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/AUGBT2471495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9b2e0501d726d00fff333f8b2744d612e56149867665ac14c9c42f2a2d6007. 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/AUUM71801115.