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 0x0d5a6649041723c4b0ed2e606270f0fa0d2ef24f23c61f55c6c30d4bbf5d3a56. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/746dd269-d6af-48f0-9929-2b3cbc659e2c.json and https://artists.proofprofile.net/proofs/artist/746dd269-d6af-48f0-9929-2b3cbc659e2c.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 0xf2b35af9c8ce4aeae493a28eeb386160cb03e23a1686dfebb10df956a2b419e1. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:47:44Z), 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/TCJPI2598216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b3e66faac545e071940d12b4695decbb24b7963863b1401066369003c57e56. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCJPI2598275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfe63cbe22bb1f1c2b851026ce45d33b4b0464c4efe4640b401769780f7562a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPI2598276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91880598595be033e4a3c186572556fde339a8e2f7453d9c87b038b947ba8092. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/TCJPI2598290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388f76eb19ac993195993a3f930ebaff2df9819d61ef4bd74d84790373b87785. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/TCJPI2598296.
The forest and the water know everything.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734b43979c1307cfae4a072f8917d1bc1d993251ac0f3f6910c27d7f0f71d03b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCJPS2219390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3bbc3a217bf4b06aef27802281e81139daf2d8b8fe1c71e955dd527180434f. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/TCJPS2219379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04fdafa51c06259b4dbbeadfa3434770c366f52e18d6393ce2372931c90d615. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPS2219381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd0c1c46b083130a1775722aa87e0d5092a453b007719788f7419a51693bc8f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPS2219383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734b43979c1307cfae4a072f8917d1bc1d993251ac0f3f6910c27d7f0f71d03b. 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/TCJPS2219390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f472c681541a06c847dc719423c3d0fca7a71d544a4bfbf4672678e362adff. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCJPS2219393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8c1285d37c5e340b19cd1a1a1795521052d4c26d0ddc7f210e5b8431632f4d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCJPS2219399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3d5e2e4af27f480b7b39cb5ff48f61f8e1b6c0a7430661f143d247c06519f5. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/TCJPV2399306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8b02027e8773b9b270dc673c8c49df335485baa3af4fc192daad02b0dd2eab. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:41:11Z), 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/TCJPW2340726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d61242ed6c5fac316b8226fc5964261a9b5a494c85103b009c07804dc54a24. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:01:55Z), 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/TCJPX2312719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f34dcde7afc3f6b91e03621d2e3a23244ba425006dc3328276ae342cd4b566d. 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/TCJPX2347181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfa19a0567afb31f657e066b909b19696f811b29e03195d798a5b7aae130c49. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:11:23Z), 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/TCJPX2377496.
breathe with nature - soundtrack of okinoshima -