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 0xd0428d3f9a799068118ee6c7424089c291e7f696929fb1359d3b91fefdd63e57. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c6e3f7a-6c04-428e-ae24-d6f6d10edf9c.json and https://artists.proofprofile.net/proofs/artist/3c6e3f7a-6c04-428e-ae24-d6f6d10edf9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tükröm, Tükröm (Kortársak Quimby Feldolgozásai)
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 0xf182e0b4b73174b1a4e4cf1ee84e0d488c719f8b6aaa5249602f8ab628f53c82. 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/HUA181624601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cb12428095567d98a8cc4e7b73a413ef6f511477e8163866bb57b58adeadc7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUA181624603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1d935100b78ae23038b46a47e7c4ebbbba2f68d0eab1ae8ede4cb44af9196f. 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/HUA181624605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde4847b331e72ff235d50bf684b9e48ecba97329285b79756abb4fc4212b834. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUA181624606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451862cfa43cec98770e54efd867a5d724648a7c2f2ba84f07608bc0309e1fde. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA181624610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e64aae11b084ab30e91ac7b72f3ff98a9c544a3db1cabad6f4acb6c0a065f3. 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/HUA181624611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0758a3be8004b56effbb75ffc68d31565d456c229fe8f55af680995a22ba47. 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/HUA181624612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311606743268f74193e1d3a92d0c5d580fd02b67e1477f87537a71317e8e7727. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUA181624613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25861d2a7add3fae9cfcd23675955dc9d8fbb74f868dce91656a9095cbc0282a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HUA181624161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37bcc4fefa16b962c69f42bb9f37880045066c7816488c01fcb00d92ba99abb. 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/HUARJ1800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec38721874b1403bb55c352385593eb92f271b05cb39bd105566231e8ccbc7e. 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/HUARJ1800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230bbc531f7ed21dd63a4f891c3c28face1f1e0609589f4bda6777f539ad5231. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/HUARJ1800102.
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 0xf200b3779c1caf4b68ed1f62ac018339daaaaf191e2b9fcee65c792fd8b893a5. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/HUARJ1800096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa028591ef406b81f00ddb5df4916701997749add4e7744afe61bc9d0fa93db1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/HUARJ1800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877bd7f1433433e1d360df4c6360161c8555592fc79bc454ea78f3d72415053e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HUARJ1800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fb5e2faba1b6b17254882705dd4283f471b4f292054812fb42cde7662874a6. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/HUARJ1800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b34a452f8e69554aa2311db03af23f2fdd4f7bba5c4149a830ce9d41a9753c1. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/HUARJ1800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b951d830bf97717a8957ea32af16634c5fac54cf2f021aa1ef7198d3d60ebc5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HUB121701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb7b1f2e6681af45cc892ac6638d231f88abc2f122f97cc08b694bfee2edb83. 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/HUB121701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a9f8323a85611e5e511fbef5a8354707617e79e834722ea53e60a261301401. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUB121701003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a613266a5f4e24882a08ac0e097ce2930374d28373a5bd6c6f10da540fb0392. 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/HUB121701004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e88d357459c620e71953485a001a13587a2305214b79cf86ff9b2f59ea2fbb7. 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/HUB121701008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41632bff741a1969ca766056c3cb612ccd39c41cbec4393f9e4fa12c1c9fdb92. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUB121701014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d239ee1761cb5679d2698e6a7924ef4c34584df2af1213791e13b265770323. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/HUB121701005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d2f08ec4767ef4d6b2a649911a3813aee2a15a31e7db3319e4eb73c3caa3b4. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/HUB121701006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9674707a93e99894a79534ae45e7a4d9b89db6a3492dfec5501e698941e8ac0d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HUB121701007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f8cdf3be861ff421ec2b69dd4cb0d6c5e31cfe3d255c7e13528f24207bd18d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/HUB121701009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cfe58e85484b7e3c76c346ad3d0c54c23086766a759e7451377989e885794e. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/HUB121701010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6696c7ea63cf13c5ccd79df56180347642637df5dfd85f75fa2fc50d1fc6297e. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/HUB121701011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13cf5b7dfd38689934fa4e67b15870abe46b01132ee2620f983d61040b71a0d. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/HUB121701012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf55b2a392ea8db10a9ecd00a6e0e9858c792a0dbe92ef7ac57b9ddf15b9b984. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HUB121701013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835673314c6d5b58d6a7b6e20ff04e6578511e7a87666ece1a093720d35dcac7. 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/HUA500900129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eee51f681879841e306afdcee66b4aab7ed6a8b46755340673cd5a67d92af7a. 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/HUA500900130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49584d57c92673151b406f3e06f90ea4ef6afa76ea7e6728a343f390f58d8079. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA500900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2d90c2c6a4f97b93a49b455d01d248aed97810eb3e4cf6004dd4a6077ce33d. 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/HUA500900135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44f2ef4630d9d0fb651dfd0fada56a8170c1a00b0a2ab308d21e8d6e333a253. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/HUA500900125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9b3afb374b0539c98545f5bfee24139e414a1e250f9f617200f26caac330bd. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/HUA500900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50e88fa9574c3f255ae31d5c5a915210498b05adf1634c8ad450be91805b359. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HUA500900127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc908861f6895ba27090d48017872db3d13a63409d469a132051ad72658d83768. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HUA500900128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26b12408bc153b525ddf905cc6b634968cf6120485e022beb6e6adca0c3742c. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HUA500900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d2621a16ef82f2a36d891b52466e94d682a9321c9d0984773ac8153674363e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HUA500900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ce8e0904514567ac2ea7e9c8d6ed85823714fdf0c4537d6da700442f34114c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HUA500900134.