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 0x509042c61a3ba969b3db7e58aaaa1b34912373119a831aa3c59137b66fa4f7be. 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/e0d35628-b047-44b2-84a3-df5489858721.json and https://artists.proofprofile.net/proofs/artist/e0d35628-b047-44b2-84a3-df5489858721.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 0xcc71e073b1852d8cd16ad777bc82f29ca46bbde227ce365dca11f4af051686b4. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:19:13Z), 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/SE5Q52100307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fcee97ba64e0c32ee523652e556525ca5daf652ee9c07a28c1a15a54fb8071. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SE5Q52100376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5b97c240a6d47a62330cbb87c431b2043f621b2e3a92162d76d085b1f90f48. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE5Q52100662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46645659a4489fba3cf9015b3b2aabea821ac00301cd41e37f0393831f14d49. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/SE5Q52200267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c4278827c83e2e1a5d124fea4b70751b70f14fd4df46e9f39054b1bea1059f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SE5Q52200939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2117e4b8add6aab21558eb1e444aacc52ce9bf23795ef1a6739fc2d97d5db1a4. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:21:13Z), 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/SE5Q52201481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740a42a62359a445456a6e61a7af01b22a7c0758f7f0be42e96e0159a5488a40. 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/SE5Q52201647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a87d7b9b69358daadad349f141c784cffdd7930515f56f47c79fb4ff645f93. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:18:04Z), 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/SE5Q52202472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd948f6cc14bce9397ee24e933d1123d338dce90220dc3be9e832f4a69db8d84. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SE5Q52202600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6903a817d3ea1dc4841638f4136294a2affd01ab63daf979cbf6b32dccff95dc. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/SE5Q52303387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0baeedd0de4b68038108149a77aa50637d949a1de4d26ff9a6c552deedd0f37b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE5Q52400598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abb11811e1de93837571b81041021217c3a425fa24c24a2600487e31c3af0f4. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:00:57Z), 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/SE5Q52401089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c00b343876e82b6f58bad47199322bde5821bd90219f96cf42de866f103b487. 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/SE5Q52401977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170e2e03021aa45f27cad9cdd038c187e4760efa63684f0b31e4b4ffd17f5721. 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/SE5Q52403215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fd30115a2c01c5a72e208b594e91c7e4cd0ae44c77c19091bf8cc4d3f98a46. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SE5Q52404125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7239f8aa8d393634d6f5fd0f901e6d87a430a87d82fc3d1872d09147f8ec7919. 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/SE5Q52404126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93466e7aca1f58ce7d8bbde3106eb8b5f0424d89eef224c673a2a013692a5e19. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE5Q52500425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd60f70cd9079f4135d43be6840effa56257591a3430b1feb38ae7f736f4e3a7. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/SE5Q52501945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d224b6c38def216782470f9f2884507af2e83c6de1c1fa6f0905be95ef35dac. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE5Q52502163.
Epidemic Presents: Crates (Ingrid Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efaadbe01be8080272a88506c18d5c79d59eb3e225ebc3cc7e683026b90855c. 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/SE5Q52100784.