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 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 0x6561daa29151f00af070c94a80aa1b82110561de16f767ee87d3de2b064df759. 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/0abbc638-1bb0-4974-8571-0cee9ec8c23a.json and https://artists.proofprofile.net/proofs/artist/0abbc638-1bb0-4974-8571-0cee9ec8c23a.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 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 0xe1a89898af3a5177721de428b50a67a23d0f6bdb762b81d226d8a056ab1927c7. 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/QMTND2300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9857ad48f14e7f53361869bab28f663bd3627ec6e61f5634262e543abfbf9d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMTND2300325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467d1d0c157c67619b2dbb023cb10bd16dfc6ceca37ac0ec007b3ff949de7d75. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMTND2300341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9641a40f541b40de3cb5a623565f23b8b469cefaf9fdf6614efbc7aa23b53ace. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMTND2300311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8ba3b2661b249048d44671e84952b0b0b65f99a8feb7538624543884b84a6f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMTND2300342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4034ef394c6e532eed2aafbd7cff47d2bc917209b7cbe02a009e2606a91ae431. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2300343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f1f0dc90b9875c97f5ac04497d3cb6dd9c2b39b12c4b34b4c62c2befc348a3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMTND2300344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d856abeb23fa07728b9992b6590631b22b4f807b76807f0b061ba8fadd5db6. 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/QMTND2300345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ac0ee37694b0d7f6d3389b9d6eecf8764ab697e3c73c6ea9ce00502cd09239. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2300346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ce8a722cb3a993831359a806b27349272a0680a98a474057913acb41ee31b9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMTND2200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba07adef854fe7b5247107c0e36e4ec672d841739c56ae2bb310b67242b14c52. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMTND2200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2e3d665f28ace9a56c7386acdb0e6e8edecfb06820245434c8e41a041b416f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438e2c94cef8330fed42a4138767061d0b3e6dd8e493495c8df84922a740fe8f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMTND2200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe76e87b966d63827fd4a138b9973030dc8f7aa1e926e878255d28bc4c753e0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMTND2200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb199e31a2697cb00b044aee576e253bd16d1f5a234a2a00ffb3130343f0d51ff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2200128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c9e151e3c1a727f4b2b1e263878cdeb33f35968d61aa56a007d330a0a1f700. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2200129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ea6465c0b854c824f529bde69373039b2557d30add7606fd3c5917a8fa7a55. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMTND2200135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9177c74c6a05f5cc65e58a3bd3cdf28841b08b41aa3605a1b0b6fd80edae0d36. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMTND2200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41dbf0de057f7d73565741ecca5d695fb30866387157b5f18f5b901b8318a82c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2200131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306ddcfe37771d704015bce96afc5dfc47c28238c9490a8b6c158484af7a24d0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2b33087c7b6f10ceffd5b00f429b7dc17c54711b2763fbf44ee1ad16d3a6f5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9857ad48f14e7f53361869bab28f663bd3627ec6e61f5634262e543abfbf9d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMTND2300325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba07adef854fe7b5247107c0e36e4ec672d841739c56ae2bb310b67242b14c52. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486292c421d0bd4f4bed3c142ad1642375898e42f5fed50cf23ac4b599098c24. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedaf0646ff8ac329f21554ddf766513c218f1135c5a6a331323bd0ce9972f1f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d1d0430e895767b1c09607e7a3f60172f7038f02b465499ef1b29e8f7b93a3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMTND2000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85cf016d091a4088d09790ff0b74ebdae744fc8ef85265b86ed09991e2ab442. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZSYP2104115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8df2ca60d24d423426519bf0162a9eb376a66a72e67c75d0f0659378a8b82f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZES62162905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20adba1d7b3131e0aeac51d0df3771535cbf66395d7f7a5762a22834e158b9fa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAEB1932769.
Outsiders Brand Presents "Faith Without Walls" vol. 1