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 0x0ec1a807848d4d75565fdab8f133e4272b6468f94b3a3fae65a924818206737c. 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/37ea8b2d-2538-469c-80b3-27401c3fa134.json and https://artists.proofprofile.net/proofs/artist/37ea8b2d-2538-469c-80b3-27401c3fa134.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 0xbc4d5dfff0511241720351a8a7695b4cad124b9fd96805ece18a463b60035952. 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/GBLFP1759777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb4935fc9cf00f504337021f8cd806bccdad996b4a0eae53a8f3a6a9b939353. 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/GBMA22161815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ff7cf29c8e2a4c4a75f8de77c562da7245c0812383402b4fa6a63ab989595a. 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/GBMA22161819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828be0babd31ab870443035af5fd0485d51c7aaee5e0a02b908b2c0be9bee321. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLBJ0900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a97d3b1dab182d03dfa747d43d5821745c0f9206605a2f19355d6ec4693aed. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/INUM72400347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a331b2099bf2e7c282001a03452535c489e9ab0542b8d19e80ea4a632eac0d6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBEBS1200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3603f1c326b762e941193d4dcf77e2a00f6404e1999cfaa82a001ef9f471569. 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/GBLBJ0900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692f8183644d9c20fa33afdaa81671eb9284c48d7107afb2cfc89ee42a09a453. 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/GXBAV2444709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab79d01c3f836857bf591a64fc461a5abad6df3d45e3b068b893f142d7e2d7f0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/INS182400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce977ea28252359010dfc59790ca038eb5c8d85fd70630f1c054fb00bb54c5e4. 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/INZ031410040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a06e50f5467d596a1faf7c8176b0e7c8b99382a078b77f75b9cb1497ccb0d0. 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/INS181900441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59535dfca40b16100a0b8852013e033adb496735a2dd7b8ef983b78c50d5e2ab. 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/QM6P41540684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a15ba3a51f022b92ad9eda5f3e169381a2f89e7d7b9cb44543e8c838be1564. 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/GBLFP1504322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd41c8dd0457436578385b68caf7b0072c344a44cb48c6a1658130d609f5b48f. 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/GBKWP1354001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eae9ee5906a3aa0717291bb7976c6ff3a717fab1b42702ab3b44be3f3f770fe. 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/GBLBJ1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680a0d4973dac1ca3654fd4f56ebfaf2c92ce195c10a903507f9dd1774553c97. 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/GBLBJ1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837c99ce6be7c9eb5c439f955c4d709c4bdff3d5a885a888d05546ff4fcff93f. 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/GBLBJ1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c8f74e7587dcc66a4196dd38c38243e4e85b84b6ea4cc8fa90c39236876c3b. 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/GBEBS1000532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ae74c4c2abb8e8bf9a8a0ac874ea8a9c26b06172b6ebba80de7525ab857867. 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/GBEBS1000533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc973ff643c3bafb725f2bca480eda1af4eba994f0a8e67de41d3229b1dc231. 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/GBEBS1100910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8100d1e45c61215f6585267af23a87df9933d4958a68b58786dba519d811e034. 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/GBEBS1100911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1987e21429a1d4832878152204dd39232f1428fed7290f055d34afd61257e218. 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/GBEBS1100912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cb6bf6cc47454bc3d76aafa50a4b55bf1300de7e5362ec59d546bc818b1e9d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBEBS1100913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484eed379d9732e77bbc88154dfd71d38f5fbfafa857fa491d4f2f40bf410c17. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBEBS1100914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17ccf1a6270e192c6faf72e3d05295c19e485c476c6bd29f13687f9c444e6a9. 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/GBEBS1200770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811e8dfc715061542b71dea66014c6a33cda1845f1dd20225326b2da0a958a24. 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/GBEBS1200771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab63fdf2b1f9fb794f8222dcc2a6ed4f4ac1986174ee4fa8bdc0840a9fcef12. 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/GBEBS1200774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3d10a9b5806f751f59aede8380884459ab22af510e6401584d274e4421f646. 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/GBEBS1200776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610e39c967f5fac57469db636f710c046926c010364c36163054ca2d7e49831a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INS921700936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83401f83a58f31c88a65f56c950a18e7d6da414f80e0a9725a9c13d4b373e478. 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/GBEBR1100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a18ff2b35e55a52f89a47ea651e37f7025540c32e7d7f0c57b23b629990ea9a. 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/GBEBS1200092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00de94ac3b50f15afc42b2642c4203b92a32c3f75964d87da683d3c1d4a7285. 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/INS921701141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79d6f8ca6bf9967cde8a921f8a462af5ee9c1b6e01ea98c11c06a7f04da3eca. 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/GBEBS1200732.