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 0x438900fc142c0952e2a15af8a42cedad5639e7d551fe80d73b76fc9795ff058b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37d77337-e3cb-40e0-878a-357529579474.json and https://artists.proofprofile.net/proofs/artist/37d77337-e3cb-40e0-878a-357529579474.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 0x290d65eb0f5a7b27e9f12f40b8d721cf2528fa7fc5114d205ccaeeaae337b61a. 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/DKPF52300601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137c26dbffda4fed254c6dcd98a00c209d892a0bbd266933dcddb08b1cbc0009. 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/DKPF52300603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8e0a43daa65a624b7ddc976516080e676ded1d7761a30ed2d69dd5c298d55d. 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/DKPF52300604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82ca88c61e06c2775f630e29f4549a9255cc14af279aed1c6ea7817803cdf98. 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/DKPF52300605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a2f1d7a79e0408a2e5f2d745a4f66773e697012a11cceccb047ebed9f0fc55. 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/DKPF52300606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183061474d1aeb29d83831e1f5434bbd7d9cbe2130d807f13b5135d5ab8b49ce. 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/DKPF52300607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9676e5cbe90164b8257deb18cec14c97a0ec5569194789bcdceca6fa10ae212f. 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/DKPF52300608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa361c18105426ccaf2e64b5fc1e62c1af0fa54846ef30210aad75c9ae2be4596. 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/DKPF52300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dd31cba4240de1693326d90a2e6a0dc88ed8e9300937bbd0d3290f0e879185. 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/DKPF52300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c9fd9e7a1bd6c0a1da3c630c8338eaa093482bdaf404d4c72b89d6844c1127. 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/DKPF52300611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5151ada260c07abb75c74f4733fde0c8ce3a9c4cc5ef26bbc114acab91cf1f. 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/DKPF52300612.
can't hate myself into a different shape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2494dc30a3190af4671644222845801159c07036ba73dd2181da7f0d4413ab40. 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/DKR642101602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1eb8e81e4b0fece36cf2d6511b6caffb7caf544d0fea6067b402b41de73c4ef. 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/DKR642101603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42087451513688abd535024fb0f877d15ec97fa3ec04c9ffd4d32984b0d5c9ed. 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/DKR642101604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c32a99bdc853d7476f18875fb8613eeb98bfbfb2e7beba9dadeb3f29b4949bb. 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/DKR642101605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4903fee3241fadbe4eceba1f13e69de5b11ff0a9adc5cb519eb8e988176f31d. 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/DKR642101606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a08afe353e8c9530f8f175d53e5b3b856e38fa5a2c290ac1f8789b93e6e865. 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/DKR642101607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a66ed4085e97e10c86e8542795efcf063c4a292346081f7172bb78488737ce. 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/DKR642101609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4351fdeb31afaedcc375f48e7c18bcf67433c4002dd9ab613f106920df9c96. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DKR642101611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8e0a43daa65a624b7ddc976516080e676ded1d7761a30ed2d69dd5c298d55d. 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/DKPF52300604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89499a5dbab31bed019e77bc1c79d07d6239063fbc7a5a8652df3c0543e117e2. 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/DKMFA2201002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da91f9c713aef8ef0f728ae7cb7a4a7d696b36a7c35b4b73ee172824128e337. 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/DKR642100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1409e605ed2812e9af93bbc0f846de16fddd2ee95e4d5057495488ddf6d205a. 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/DKR642001103.