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 0x0d49379e56f1a5c3ec6a2779951e50054a6f9234080cd9193beb57ba52158b9f. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dab052aa-76ac-405c-aa93-a8b408ea1eee.json and https://artists.proofprofile.net/proofs/artist/dab052aa-76ac-405c-aa93-a8b408ea1eee.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 0x671920eb0fdb9285a577619d8775c387ca8faa59af9d02d1c6626a482d975e2b. 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/SE54Q2400804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca7448b5fe49303f71585acc79b260891caf52f86676d451323f53f601c8d02. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:22:56Z), 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/SE54Q2400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabd669b6ea82ccebeede5c55b060eefbbe188e30d3216995d8664dd3e378583. 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/SE54Q2401601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671920eb0fdb9285a577619d8775c387ca8faa59af9d02d1c6626a482d975e2b. 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/SE54Q2400804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebd2baf46b3f1cee2b349c27b27a9d76cf7ef818820a67ffe47054e09ce13d2. 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/SE54Q2400701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc489807b0db7153c8fd4db2ecea0ec1bccacd74ebc4d009e6f84291aff86a3a. 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/SE54Q2400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda4d8169810e2007257f8ddd9840cc4768d183ebeb394424a34b3c478ba2fda. 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/GX3Q92116957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08e6366a31ffb04b70be5e4079ef041166db6ad20452fe706dcc1327c679f7c. 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/GX3Q92340713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f84885c71a4e75a9b0ee827e6f1eeb61872834eb70c28b99c5aa63438bc9735. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GX3Q92340715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c0fd3c5ed7dff5fdff8abbc3a48c3a4f196a1dc0a2941fb84ef70b6b7f3e6d. 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/GBMA21960918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61ea9ac8b5e4048879f2e1f9fe1c6666845c1a4d33599510b361537fda8087e. 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/GBLFP1765280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc641d8a882d547839586b533f49aa7d7a6fe1664ec74ccde148ccf6afb2186e1. 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/GBLFP1815163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85df56bae740cc51e5e76026a4093a7513b894bab0b6c448b90ae886e368c350. 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/GBLFP1815165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378f788bd264934d83719a75ad5de8e3b92a00d7acbe0154a0b4112bbf233054. 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/GBLFP1815168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb7731db023b97456fc01ae47d06fee12b26058a78307a8a21062241059c028. 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/GBLFP1568955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa5d97753b81f92d5237adf4ecd74cb286935ae0e776a8abe9b086fff7618c0. 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/GBLFP1536609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae23a31613eba384476f54313f52c83d5c7772002b056222357a9fdc14740c7. 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/GBLFP1536610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9559e7649bc9b7ab1fbe24854e88dd583e2f58b98ac63d399e9e3f0ecbf758. 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/GBLFP1536611.
More things to do in zero gravity extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156b3e7e091360005033f2748fdf8acde50ad60a35ca2c552024576745e4e470. 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/GBLFP1562905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc0f379b0af9050a38f86ce94f9780e3499bf5e6a804a197cc7df7c20815824. 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/GBLFP1419134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a354e6354502815569903aa1f584a53ee2b2d9786252e0c4ee4b5b0962e7e72. 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/GBLFP1419135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163ceb7488ca6228128b9102e084dac4f76387514e63fa414801015f7b9908cc. 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/GBLFP1419141.
The Guide (Solid Extras) [Solid Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70078c91686826b83d063c973be0ef318cb7bdfa96f03a3017fdcbe8dd310e1. 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/QZTB42374360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0183683af352b1d7bcebf5e0d465321e974d2ab4337e0a1b8592e9ad72e5a66. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GX3Q92308612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f0091148825b42655be2f820708e78e6b5b94a9c08901676637424042d7677. 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/GX3Q92308613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b89a28d8e938eeccdb50088bbe21f40e8ce6bf05962f0a878caeb61f619bc0f. 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/GBLFP2239973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda4d8169810e2007257f8ddd9840cc4768d183ebeb394424a34b3c478ba2fda. 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/GX3Q92116957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7551dd9f5bf00b6a0bb67d67e700e06d03568efa00f5f28e79e1e220b2d3a5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBLFP1564153.