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 0x9d61d5ed58d2de67576774e2f77b56891dbb4382635d51ecc52ae5a58a916286. 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/99677b23-bd54-4e45-925e-ac28c2c1d11a.json and https://artists.proofprofile.net/proofs/artist/99677b23-bd54-4e45-925e-ac28c2c1d11a.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 0xa6537c650da8e0c8e9a57ec8d683f82dbebc86f607e3a0db28dcfaba6f1f50c4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72313594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21006a001c0ec7970222a606dbfb7773acb2045f38bd60bec12fdd7f9b5318e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72313595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010c374f0247c6e2e8a0942e616f21a8af88931cd74f454f10cb96f704614586. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72310850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e8e2a5254577278d27f3a70df9f976f71c5fac9a3fc82e72d539a2ab4e2e03. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72400571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce07262a2606bec316665edc6b5b4858abf3a4c6fc575fda053ee214f0bbdbf. 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/USUM72400676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a549e3ed10d69112492f302d8dd734d42c76f9870760ec10058d2b4aab6227. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72400688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519067fef3aa6d9075e4487833e69c71783e1c7fdba8c8ab7a2d5d1d2fd7a03e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72400689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934ad8a1be26536c05d3e00a9808d325f5b70643b3ce8b90fbc5665665d4e016. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72400678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eb4a5210dce01bcca8a98f4ea0acf3545e9864a65656cdb0761aef8ec5d460. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72400691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3490afd8dc40caf87de89917205f2b5bbeb68a4e22f6e3ff2ef4df53e72d347e. 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/USUM72400681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b9c43bb3b6dd91f947c97c467698b15c8f467963ea9fc5f74e0576eef99175. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72400572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615a390eecb170a2a1fab32ff711c30adbe1c91360ea606337d4eec13b443805. 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/USUM72400679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a12c9996be5b645b9daa6fc791bce68d9beb3da6800c4539b0e4c613d581c02. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72400694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd6bd8c49572081f20bf3043cb8b9e1b6a4bd4b0b276b56e56f75922074c3cf. 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/USUM72400695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331491708cd5dbdc564b42f9b3a1dc98826e396c6ca7c48b0d661069f52588aa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72400680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb4eb96631596bb9dc60f2aa9e1e8ec015c641b2ef7134167e4fe492e9dffd8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72400697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a257de9f9c29413b7de4970af110ad5733bd1aa09504bf54f581ce804eec73d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72311703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc141cd011c63ae49b41b15adfbaf3c6715de0e91f0b2686dc72f5777a7430a98. 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/USUM72104445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd6bd8c49572081f20bf3043cb8b9e1b6a4bd4b0b276b56e56f75922074c3cf. 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/USUM72400695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934ad8a1be26536c05d3e00a9808d325f5b70643b3ce8b90fbc5665665d4e016. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:54:34Z), 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/USUM72400678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519067fef3aa6d9075e4487833e69c71783e1c7fdba8c8ab7a2d5d1d2fd7a03e. 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/USUM72400689.
Christian Summer Music (That's Actually Good)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e8e2a5254577278d27f3a70df9f976f71c5fac9a3fc82e72d539a2ab4e2e03. 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/USUM72400571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21006a001c0ec7970222a606dbfb7773acb2045f38bd60bec12fdd7f9b5318e. 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/USUM72313595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e8e2a5254577278d27f3a70df9f976f71c5fac9a3fc82e72d539a2ab4e2e03. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:28:03Z), 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/USUM72400571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010c374f0247c6e2e8a0942e616f21a8af88931cd74f454f10cb96f704614586. 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/USUM72310850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc141cd011c63ae49b41b15adfbaf3c6715de0e91f0b2686dc72f5777a7430a98. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/USUM72104445.