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 0xdcb4c2e0c5c4569ede4c0ad7be6025840a1a3ec47560f97e09387f5736a30e90. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51b68bd0-7bb4-4034-adc3-9530f71bc2d4.json and https://artists.proofprofile.net/proofs/artist/51b68bd0-7bb4-4034-adc3-9530f71bc2d4.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 0xcc1ed7564fb419b2c6feec1fd200ad4980ecf9c955ccbd41132b8808cac632fd. 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/QM42K1844504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc57f0dc6135ac9a8c5367168b8cb7b81a39c599ce00e9e99b2518fcfb1a6c8. 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/QZKDK2207383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf933109720faa0c6636898bd2040c9c1cf24afc3be39b2bedb9612e7be7606d0. 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/QZ5FN2475787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f0d636f16134cdedd1b5e847d8ccd60d31337f5dc2c72618e2c9a1ce966d31. 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/QZ5FN2476456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9927c73fb369e7c0894fa5a102a180b9f22c2e592e499f8bddb581b39b1ada1a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ5FN2476613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7198d2d0f5f75e7085b397e920f88f449c448b3895a65cd2e19ad28da949b33. 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/QZ5FN2476927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d5f8bed51debccd2a92cc2090a6d46443aaade2f9d9ecfd5e9bbdedf2a67ca. 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/QZ5FN2476985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba644ba814b34f89bf1c09d6caf4f623968d7685bf83de103fabde8281fd70c. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QZ5FN2477071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd70ad1ef5da6f380b9ebeb574583b37495b14df45f94706e64c1d3a492ba35. 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/CA5KR2229050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517afa0155dfeb1be0c13eccf9a574cb4112e6370d6d4ef5dd78ce00335f2229. 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/QZS632180918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d34fe9796894c11329bc164a1c02dbf5c82041ac386c656e3a995595b84646. 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/QZS642148781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6db7f0ebc7db92c43b99281264a92ce8edf033e84e9297afb3fab10911724c7. 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/QZS662120014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3739d2d90b73c8871171a936257e38ddf121189cf046da15599987e45f26ea5. 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/QZMHL2496398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ea78698f6d8a752a3b103d3d6250c4f920f90964fac8954cf3d3669061e0d4. 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/QZMHN2422514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7ce6fd8ba520f96bea8da0cc99396be9682f6a38106106fbbadfeb5b0dca8f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZS642431532.
Elastic Spastic Plastic Fantastic 2024 / clipped version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248fed8b71965180902ee29dfc9b7accd8ec4dcf1ff51546b8b2d5802ac88996. 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/QM42K2488294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07261506c8d26e9eb27eb1de28b4d60d68d9fa1bdef33eb4fefe4b71047fe40f. 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/QZMHL2275572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65955c319e81940ef4a6e88b96c0c29e97cfdfd58fb30cdc74706f5152184825. 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/QZMHK2259134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa061f0fd36a9e8f7fb3f4989faad81facb909b322a6c1c77548f4c976ab7a910. 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/QZS642213626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bad8c1d726a2cee4b6bed3203483448c5ce1139b5d6b29856451cba8eb10d8. 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/QZMEQ2327617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9834bc65b0b5c7a71ac4c0ad2dc028a4cd9b51a9b9255de991d521ed0c8ff21e. 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/QZS632495873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd310aff333b4d0c1239b75944304c932badfcecfaeba4c92e217fd78cbb86ff1. 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/QZK6Q2159493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d027a870f1ca836e317644063e08144f53a33c1f90a444859f903e19733d655. 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/QZMHK2066108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fb9515d74d49325eb62982e40632353a5d77f66bf703b74ee9361b508546db. 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/CA5KR2539740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630bd2a00b386a89432a646fc24b1080910c66ae48a8d773f2c467b21dbb89d0. 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/CA5KR2539725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78422f24c99702e143a6408c432db0d747e006fafbac8f2d061b8bc70d8459d1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2540624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447982b3001d2acc3fcdb66677ab934766b984bf2f4ac77690f20adfdeed559a. 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/CA5KR2539720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa9ce223da10671f3d57ea331029d7b67104511044cf08aff3e2215678f24d7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2539719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba7d45792370f2656cbd924253ed6c8a87deed36becd3f4af392fb089532077. 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/CA5KR2539718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456f7612a40b8c06c99b0bcd3ed4e0acdfb477df074a70097878140237e858e3. 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/CA5KR2539427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6550935f187982267099256ce3729fbe93394057fef455cbc64f0c6478570616. 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/CA5KR2539428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1830df27a94d8ccb01cd1b8bccf29b5147b81f4e6c4c62873f795d7f0b0ed48. 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/CA5KR2539709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45bba9a789fbcdbcab72c04026e27a132a280aaffc33ce4bac75265fa7db644. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CA5KR2539716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07dc620acc860ed3e56a3bc71f6ea09d4ef4d4d42e542a9c5f6037ebfbd34b3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2539426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6253416613858eb2340e6a71f1aafdfdc09904001adf461c675331e7197ae8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CA5KR2540371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551fdb5dc29369c0df2b1cba9506a44a8bb196926b346411b30bbdb9cc5db3f5. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/CA5KR2539715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfb14f0345851d99f14ccbbb633b7ad17bc3ba9572ff0906fc60f7ba35426d9. 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/GB8KE1958719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb197ca218eca95c4a67761516a952045c9deab985e9afbae6690d773c4e2fb07. 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/GB8KE1958725.