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 0x6e2e9e1e4dfde57968bc9b860b5f69b8c0d7fa09d65d4fed6f31b8ef3a2c54d6. 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/36490f9a-c4cd-410d-97dc-3659c3074856.json and https://artists.proofprofile.net/proofs/artist/36490f9a-c4cd-410d-97dc-3659c3074856.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 0xae020ee35e7b1936b51eb9b096870ec2248da14eae7657c593e6092c087289e1. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/JPX422200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e8b289d67e1238ffc9007585448f50676e2afbf6eeb59d00a8869608a32d87. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPX422200162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5058b354d9d624c4a09c22e6e580dbd80be398c5aa8e99962e7d20e5a311f45f. 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/JPX422200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50eb0773409182ecdcc541275e59d36437847d090197cfe3228f4fafcb80406. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/JPX422200121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e8b289d67e1238ffc9007585448f50676e2afbf6eeb59d00a8869608a32d87. 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/JPX422200162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c30618262e32bee47e9bd9d461c44e1ff483b232451242fea807b123ed21ef0. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/JPX422300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12d8347f937400819ba53d8c47a4a467b7ffd053c3c69f7c06e0254326fa589. 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/JPX422200144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5736d847809a05162e496b416b5b42096123eb423f73f83ebb47462b566394a0. 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/JPX422300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fddb1a6e8e22595436aeb18efba82b603dea5f3956b4f5fae2158c6229c4c70. 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/JPX422200126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b61e091ee273dbaa798a7ed4ef73874efacf56ee917703e755852f3de495800. 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/JPX422200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040965837c2addcfc6743af1bd076eddac4055324875d8181f5f729b44fa01a3. 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/JPX422200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698d40a4b21a2ae7f668a282c804a65e1168979a611c371a14995003598ddf8b. 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/JPX422300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d69f383c808167a9d98e9bc3ee61968a4a340451a31bd435337f5abc4954163. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:03:01Z), 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/JPX422300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dcafb3f41dd63aa46b118fdcc10a2a9967a44a0871ae69b234e66af1816903. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:58:39Z), 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/JPX422300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05409a053a04fe1fb973a1e40c69e653b71845841b85a7a07e35b4220c1651ac. 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/JPX422300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcdd1d862ef30dbed42bdf86ce26264033f96781a4a6cf53ec4a32e30a48c01. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPX422300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcdd1d862ef30dbed42bdf86ce26264033f96781a4a6cf53ec4a32e30a48c01. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:05:16Z), 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/JPX422300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698d40a4b21a2ae7f668a282c804a65e1168979a611c371a14995003598ddf8b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPX422300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e474f6b5a49d3c998bb8f4c7e40d7f03da679183b9baaef1cc03cd8f32232bb. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:15:27Z), 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/JPX422400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d69f383c808167a9d98e9bc3ee61968a4a340451a31bd435337f5abc4954163. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:41:13Z), 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/JPX422300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05409a053a04fe1fb973a1e40c69e653b71845841b85a7a07e35b4220c1651ac. 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/JPX422300091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07274104718f3288ffdae0ce0a57c334f111fc0d250531467814f14b8af28362. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/JPX422400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1061f81ddcddf1bbed724d35f3a20f2e961c8fc5f63f2fe010016c7d29e47e. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPX422400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe311b85ff61d28540e303ae084213d36c6b93e8ff715be5f6a0a232f6bd81db8. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/JPX422400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a572dd57d8aa2509b671309110ef249c91fe230528d87defd218581c2f5c807. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPX422500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a572dd57d8aa2509b671309110ef249c91fe230528d87defd218581c2f5c807. 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/JPX422500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f29fa176f856f8c9468dc3a8018ae889f3f74923b5edd5ad7eddfd72a1a310d. 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/JPX422500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e22d7fb7139a363d1c4412549529fbbc5fd558953f51610e4633eeb006d202. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPX422500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eddb220187b2eaa937fc281e7bf393a725382685cd0ea067a406d7e08509919. 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/JPX422500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2abe4d7e2c979f9cb66530d3a135afa7a99555419c11cb775b08080e51195d. 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/JPX422500033.