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 0x6a72d0f5639fe689769499c9ee8b457b86a4894bbedd69bfa539df9c7aa9b360. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d238e4fc-3b38-4379-af1b-2403533b66a0.json and https://artists.proofprofile.net/proofs/artist/d238e4fc-3b38-4379-af1b-2403533b66a0.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 0xa73729440c597e59d8d0c602f161b1cddfb56c5486fe7d204d44baca45ea304f. 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/GBUM72207586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd57edabea46f75019cb0540ea0f3bcda211159a463e1873ae449a0f1c9ea96. 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/GBUM72207589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fdb4c7a8c96f64e98d18476199ca64071ed3250dead6dc01f4ab77c73896a0. 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/GBUM72207590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f28995bff6cee338a1b701541c5e48edc760f0663444252fbbedf9eaa19a2d. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBUM72107944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa483dfb44ff0c0a918171655e29e9bad86f8aef0919891cbb8e9f628c72be398. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:38:13Z), 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/GBUM72107945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b261e81775fb670180050f1f72efc86854af39df8ab9854e97fda575e9075b. 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/GBUM72107948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40bc5334bcb15cdf1b99e4ac119c8a5efde19994f53a5ae5bed8df028556f73. 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/GBUM72107952.
Don’t (You Mess With Me) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7736126ed4d0d163923867326703f65630857d838289b595067c7e82478c463. 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/GBUM72107966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a9b513eeb516587668118379f8dd91fefcf8560df083dbed3be18584b510b7. 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/GBUM72107967.
The Wolves Are Returning - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc991b2d99b40281461721971a2f3d3393d637c4d53f57ac5ac47b4ac8de3ee. 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/GBUM72107968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1715ddba9143e53787c814102a5f0e1387b913c9ae3e8fbac5067a67c161a63d. 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/GBUM72107957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da43b5c2571f9e66dee59e13a07ba01a1c2804eef39aec4717ddb631e8576b1. 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/GBUM72107970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f28995bff6cee338a1b701541c5e48edc760f0663444252fbbedf9eaa19a2d. 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/GBUM72107944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa483dfb44ff0c0a918171655e29e9bad86f8aef0919891cbb8e9f628c72be398. 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/GBUM72107945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b261e81775fb670180050f1f72efc86854af39df8ab9854e97fda575e9075b. 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/GBUM72107948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d6ef5e3a285d23434e495b471f5784b9a403083044ee8d458aed9436a54f24. 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/GBUM72107951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40bc5334bcb15cdf1b99e4ac119c8a5efde19994f53a5ae5bed8df028556f73. 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/GBUM72107952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1715ddba9143e53787c814102a5f0e1387b913c9ae3e8fbac5067a67c161a63d. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:13:06Z), 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/GBUM72107957.