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 0xdd692f8a530db3c96bf0c72aa3f5c778401c12877615bd321d82f0c8c3600a74. 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/066caf20-47b1-4d12-a417-f79c3fe7c7ab.json and https://artists.proofprofile.net/proofs/artist/066caf20-47b1-4d12-a417-f79c3fe7c7ab.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 0xbd3f728ed7a8e2d764cbba1a2823f92372aa7f00fd1132db12e2d48997bca164. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:58:08Z), 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/IDA160500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d361aa5ff0e49afae99735d22f7c32f7c24a7c0c36d6c736a9f5e6fee7501a9. 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/IDA160500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aea2f2eefe54e214bfc70f765774f0d67c2c81ba31c76a64d00fd7e239de4ed. 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/IDA160600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c806baf728f70ae5d6a2396f005bceccf62c72548caadf7d67f1e5ecf2c7682. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IDA160600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fb461ad932464af4646be4a1b2f1806e61652f4a7b787eb59acbe54279fd26. 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/IDA160600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca296f5e7f2ded97f887709abb3ea05fbc131b8d7b2c58959bc00b83850e6d0. 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/IDA160600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640647739510e1ed3b46ffa287b6cdb206fa2036de43cd773b7e36c1af2290f1. 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/IDA160800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaf4bfa061882415e2527df692f5fe02fc5431f29c098b8d84ff75be1e48360. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/IDA160800067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf6fbf2c1ed85c20446f530447103d498cb68b685e1fa3dae45663da8495b24. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:06:32Z), 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/IDA161000142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fd80f272d9cb7c362aec05c0856db26eda440c0bc98cf869114241642f95c1. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/IDA161000143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c08064f0e65b1a78dac13c1c52077745299b8aae12a8ad94db6b81c7c4bdc9a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IDA161000154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa333da4ab1034f89bef1eaf7f51025b5d0a1b0b56a5f6121a64ddfee31e55906. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/IDA161000155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ee85e445985828b934ac037ad45eb7dadd0dd175d7eeb16386ec6172a8b128. 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/IDA161000157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55055bd661ff90edf6fc6be9c6749c653e86076b66dac2c6fa3dbf3d94108aa. 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/IDA161200258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc7439a2e66dbe02b7f5117483974d4f0349dc6a6f7c0dfb7f952124e66b571. 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/IDA160900072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927ebde2c8ce6ba7e95f23318066af4c3e8f2ca02ceb466b6e6acc9bf80d0773. 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/FR2X41674729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9a5b4fe415b78fb2b53086d5be5b981258f8b564cec0977bc06fcfeb91f911. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/FR2X41674730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce390c45eff54c7f354485e63d973410883f87ac0aac1b749be55f49d0475e3d. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:47:47Z), 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/FR2X41674734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bc405bb1f4c884f778f78ea42961121b334a9f89f7d15048e1447ed60b375b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:54:34Z), 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/FR59R1729288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d07750c814956544b1ea895e764406f06ce398bf7767854e96918b941f92bd1. 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/IDA161000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3be875bad142b2d9bda998b0c46495d675d04db15643249cdf4d48ad386350. 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/DGA072163869.
Jakarta Dreams - In support of the Roslin Orphanage in west Timor Indonesia
Jakarta Dreams (In support of the Roslin Orphanage in west Timor Indonesia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5c7efe894df1ded03cb12ca31ac6be604ed3fc456e7c9a8bd440740e57fc89. 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/UKAAZ1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6624e4f6dc7b3e3d9e7ccf9fc179f854a4289c96e3f00d3923f874af6e360263. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FR59R2097802.
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 0xe26406a158e153061b4a2753fc902ca90522b31bda369f618384566d6de55d9d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/UKAAZ1900002.