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 0xacccad1599a075714224adecbae9eaec4fc838824de1bd013481d22bd45b4f5a. 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/dcc0627c-1dfb-40b3-bc6b-08cf25367bad.json and https://artists.proofprofile.net/proofs/artist/dcc0627c-1dfb-40b3-bc6b-08cf25367bad.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 0xf2497951f247206579c81da8892b3df62880d224da4ac9beaf799a0e04a8778f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/FR59R1608457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60ee16a84440bf510c50e0d6f6b6a7510822709237e42e5c457dea46cb6d816. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/HUB071300192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa905dcf55a5e1e046582ddfdbb5939ed5f4934e5cf85a4a381329fbc5f65594f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/HUB071300193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60ee16a84440bf510c50e0d6f6b6a7510822709237e42e5c457dea46cb6d816. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:13:48Z), 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/HUB071300192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa905dcf55a5e1e046582ddfdbb5939ed5f4934e5cf85a4a381329fbc5f65594f. 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/HUB071300193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cac0e6507a1e51436a6052ddb034c0b870a2ce7a1862ed51aafb8d9fbf0ef0e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/HUB071300195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7574325ae493653aa3fe70b8d8180ebf1d7dc6a3a611e49a212f38bbcb1a17c. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/HUB071300196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b35faec8e054082b24c0d4fccf4ad9c7d06b07bad4bbc1e142e0d778a90768. 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/HUB071100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b35faec8e054082b24c0d4fccf4ad9c7d06b07bad4bbc1e142e0d778a90768. 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/HUB071100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3742d7b45eb22db69c699effa881e402fa32746f91b57ef7c80defad99c9aef2. 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/HUB071100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28846d1a84c41a9f188a1da32eaaa824bef767606a551972f233992587238eab. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:04:52Z), 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/HUB071501693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf61fdabb5ec4fee380bcd1bf577ae105d3a1b2f52397eb63a79d3f87c3385f0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/HUB071501697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4abcac59241b41fca5f8ad40aaa154b58f6c208d92e581bb559b535c4f9d8cf. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/HUB071501700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a203f077706cb167cf75b3cab87c13ff4fadf8ca7bf5ab0cda9dbc04afffbf3. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:40:25Z), 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/HUB071501703.
Neked (Bartos Erika Megzenésített Versei)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9c083663e86185ada6e1fad48f949909fd93589e599d56111cdd2f35a37576. 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/HUB071902698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9211cb74c399a25ec056bb3be2cd80101b219a128528f69684448a91ee162fb8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/HUB071902699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41db3d9bcb3b36e5f5655ad01bac13ce5cdd6633da19eec5b92c51810a1a5314. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T06:30:28Z), 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/HUB071902700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ad8af590936933e87049f0747a4305798d9b5a534cf681faa29d3c1487c836. 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/HUB071902701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9c083663e86185ada6e1fad48f949909fd93589e599d56111cdd2f35a37576. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/HUB071902698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9211cb74c399a25ec056bb3be2cd80101b219a128528f69684448a91ee162fb8. 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/HUB071902699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41db3d9bcb3b36e5f5655ad01bac13ce5cdd6633da19eec5b92c51810a1a5314. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:58:15Z), 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/HUB071902700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ad8af590936933e87049f0747a4305798d9b5a534cf681faa29d3c1487c836. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HUB071902701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5242b6b12bce08a56c0dccfbe2da16862d4d0430cea106ac29e2b100c8dc0b2. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:28:35Z), 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/HUB071902702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57997647a10c8588442c65d33298cad89f099411645b8677d9527c1b5faeb71a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DGA0R2474901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979300b6794ce2ff3f133012c7dd092ffe27d27381364ea7549164f19f5cfa8e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DGA0R2474907.