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 0x7c8773c6c74029077c9c7edd2917a47946aa75bf0abc1112566cc80b302f144c. 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/31fcdcd4-a6c0-4314-8233-5bd2a9909b8a.json and https://artists.proofprofile.net/proofs/artist/31fcdcd4-a6c0-4314-8233-5bd2a9909b8a.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 0x60789f76f70bef59917051d63772f9c8417f64111b00b68e8a8ebf69d5927e5d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM91946222.
Melda: Dentro del Pinche Árbol Que Habla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2e11670ea67329a7d29078d093c2e6c2ccd4cc1f78631aa3f51e222ff60e84. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:28:03Z), 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/USHM91946223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b4a275f6e4140cfb3874af33977c4061c52d93b0685d195606dc4abc73ed05. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:34:10Z), 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/USHM91946227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210835b4a9003651721940a2b76c1789ff23d1fec093361fb57d95a9086383f8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM91946228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b545c7545a18939c92b4e39d3d96ec5af05e3dee9f6c01025eef65c92e09ae. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USHM91946229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e242036c3d1ab3f53247f541bcf989e980048cecb86df9fb66194abc94f1d8. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USHM91946231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f6f02d7e256073602d07a27a9db5004addd75401905f4cfa5d6f9f2f3fd238. 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/USL4Q1931928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf8ce40bd9215eabc9d3b1b58528d3f91f25395907ef1300ff203075e198748. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/USL4Q1931929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af83caf409df680a7f137bc8e4cb66c0d8a13b0ad1d846d71d0bda2dbafa917. 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/USL4Q1931931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29e938a62f7caeae4276bd39b775e22e1e703b5385771e108445c687eb54975. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USL4Q1931934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd080d1edc85bfb2f5ea735b6e6549e85e768577a604e9371254cf44af27e42f3. 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/USL4Q1931937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3ac985ba45eb9345b2f55260d4c12c06ba962d610e50b395f4935286cebbe6. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USL4R1900585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddef03391ea7cfd8f3f8d80c9b330d9f0647f9c6dc89daee587f5d200d15c323. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USL4R1900589.
La Saga De Santa: Listo Para La Venganza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974605d2341d0d04d7742fb4b79278006c8cf3e374185ae4bd18652b52469f48. 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/USL4R1900591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e50f2bd89e06223924c29084b61d80f6c51d50b5109eab5fb95d802ea631d3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:07:36Z), 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/USL4R1900592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c3658c6bcdb687f57eaf1a8864e97bb0c83732a7892342f4273749f4bc3b00. 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/USL4R1900593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9196b8fac81ef47f9856b5e585da3c59b739905255a8e6b925d7247d55d58b0d. 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/USL4Q2190168.