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 0x8a8e505f362fd0c492b6e3e9f8b37913b97724a016a49980a641af54736be121. 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/95d90be4-7286-407b-97ce-6c930e0250bc.json and https://artists.proofprofile.net/proofs/artist/95d90be4-7286-407b-97ce-6c930e0250bc.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 0x0d0b89bf4779964433ed3bc9fbe5c33c5dd723c7e5fed3b19033b74fe72c061c. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QZHNB2089144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6030c1d5d83691f5e2f34d984594629ef8dc1cc0ea34aa2d3fee8f9028760b. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZHNB2089145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a31a74b5f67c28b5a187ddcfa1f3cbc19afe788db795639a63b3d74d92976a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHNB2089146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd15663e1d70b7a162af8ade741ee67c65cf73de1c744c7e62b4376a05b1d28f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZHNB2089147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89d1ff2df1fc71e9a89ce0fa247d4ef960f7103ecd7db48e455ea390f491077. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZHNB2089149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f7ba64fdf15a62f2a55a0b91f1067f6e7e166ffa68a062ad7b7260ec6ac4fa. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:21:21Z), 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/QZHN32087712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402c6052c8ad6f73e0a89fd980b4f69033b1f78b6e64cbc8492e757fb239daa8. 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/QZHNB2089150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b0c43c0a762ae50ed838393d984b03e3bfddf6d64e166a4bd4f9bc9a960b20. 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/QZHNB2089151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e785156cd9f471a524babeaf6a8c3f9dab9b1b93662143e1a2e1f737aea20d2. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QZHNB2089152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b591a9e25b3333478cb47623617fb39e95c0a0077aee3fe95235286f9ab140. 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/QZHNB2089153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7d566c3c9a665d43f8a9c9f9b5febc1af3f7ce0241ecd757ba964a76cfded8. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZK6G2169496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d1757df55c220d350a07c0b83476c748eff149d329def381f9a0b1ae5adeb9. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZDA52280415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b97642d459267ad3ef51e1819c4646717ea8ee46c0902c493da6b4e9813f62. 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/QZNWQ2182049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c401c73c97d7175d32c2cc128ac96c73482a2d756f8a310374f706d495bf30. 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/QZNWY2141603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00637eb881018f8c5aa9b35681b1d5613e3f447721802cca6f4418abca779a8d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZRP52154826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6552dcf01b8b7b80f28434762eb16d0579007dc8b7a9597c9a1ab5cb1d59e21. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:22:55Z), 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/QZRP52154828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4d75a5ddc2f6410a1773cfadd05568147923f5a22f207f72f2abc6ff723966. 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/QZES52248329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9607b81b91be20b10a0771a361e7bef91fdf63aa7dc0ef40ca55efcadf71a4f. 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/QZES52248331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea49bfb81fb1cb5a8babf33f342cd628a5c540dba4c13f5599c9376bed5155e. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZES92264753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c8e8e5dc32c25776e20bbc38b2cfe7ca4b30c3eda5895976d74d556c4e4a8d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZES92264754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaddeeb7350e55b37165077529e4b42f6fd132cf34620a0c557f310cd0efae5. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZES92264755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1bf4b997a75b5cf802b1ab3038c73bf75a9c8485ae35dc879d89dd46590360. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHN32225658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5544c365fdc6046a81cd198f49853e8a0be231da79747b8a45ad148cece0f2. 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/QZTAX2214176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f066489a531589f20663a7081213786a44cb8faa2f564d46d6a0584a2ebfec. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:03:40Z), 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/QZTAX2214177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0dc3b732944fce6a450256ea39590f4d7504401bb31559f33f041701c92cc9. 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/QZTAX2214178.
the fear of suffering is worse than the suffering itself.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e5f7333f4fd8b8612706ace5647ffe6fa3918e19b95c8e396e9fc4659505bb. Chain 2 (Bitcoin): anchored in block 957674 (2026-07-12T07:50:41Z), 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/QZTAX2214179.