thumb|Pork belly cut, showing layers of muscle and fat thumb|A pig being slow-roasted on a rotisserie Pork is the culinary name for the meat of the pig (Sus domesticus). It is the second most commonl
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 0xacd895de471c88477e096c6dde022b96eb2bc8d64665f3181d9443b435d62886. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/960fcdb6-6bde-4242-8b3d-48afbcb4a827.json and https://artists.proofprofile.net/proofs/artist/960fcdb6-6bde-4242-8b3d-48afbcb4a827.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 0x3f8f464166e85dddb8215481ba04af2f7e84cb437a7acfa6126a3c48e2c74a52. 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/GBSMU5789741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82f367d02206ddc6ffec72bf2e17625a7f877e091555861816b79ab01799951. 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/GBSMU5789742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e59af62ef805aea22cd557196946efddaa7660349733d80237178adc08b6569. 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/GBSMU5789744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705f4c9423c5d76b034b0fe90b7462bf68417ed71717d7ce62b5291d482c709e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBSMU5789739.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d0fc75536de1c9483bcbf32cdf06bdc8b7cad2252ce9c8d6a22ada7d2e5d03. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBSMU5789740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf753cb1cfff52879d20ee52e8c064b74befab63eb9c96754877dea33c5f1d72. 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/GBSMU5082992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1563eb0834e08ce4a92dd082c372f2d70aedf453d7ed93a753a563dad50c4f3. 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/GBSMU5082993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cf474256f467b95ec7fb954ba665bbd59ec23c2849fd4e844e623087080869. 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/GBSMU5082997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70cd51d382109d3896a994b794ce9f895883a4e67bdffef7741fde6761952fd. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBSMU5082991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9cbcdcb6ac4221071433d86069c46da92ee039b052ec004745cdfcba4baaf1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBSMU5082994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e43d22a6cecae054fa13f7257b03d6f718f06d302180e035e087b6c527e354d. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBSMU5082995.
Friends Don't Send Their Friends To Rehab
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6457726a25e57592e392c98d35f44ff6a04c687850d126f9536cf38b24a08ad4. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/GBSMU5082996.
Un Mes En La Tumba Dos Años En Tu Habitación
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82161db84b985da8162f9a5693f51b918809fb57a6faab12b56a6829e8fbc37b. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/GBSMU5082998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67e40e94cb178dd3819018b0547f27ef3e67c2a3f1e88afc76e18fb397d55ca. 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/GBSMU5082999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baeaecfeba7ed1a762a9778a63ae5940a41ba3031a9fd1d1bc73579ada83794. 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/ARO051000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c480558171a36fb3bcf56d434dbb9d6a21378989842b5e5152be165a8f1375. 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/ARO051000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e83923c02e79316b60c62d2753e171dec95b5576d3f3aa5c6384eb4a592ed4. 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/ARO051000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f03bf27136a3aadb8f34c74308cfa44ae269b6c998adeb507097c28650ce25e. 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/ARO051000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc393b60aa593443afc8fb945189403bc665f175496c7d10520377c554bb2573b. 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/ARO051000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933466e8b01085cf5cc3372951f8287e80f34ba4b261bcc015d19db4f28ecd8a. 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/ARO051000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a8979944da254264c7da8bba8a6fa539b9b96a2d446e9f97eb1a42969c638c. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ARO051000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66a42bd00ecc6149be724bd2ecc2f0d6c26724a097ee79e6e3c0ed425227c71. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ARO051000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11c17b474bbc1fccdb2127d6b0874120b1469d2651d22c1ac3df9f05a1966a7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ARO051000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8b9612ffe2b2aafb062d3880ba1556718af36ebb6960bed6652a72786d3f8f. 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/GBSMU7349810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d96196d4d440b39b011e4d2651c988c52584155ad978910085342755abb248c. 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/GBSMU7349811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008426328e235b6ccc4d4cd4d2a28e0a81d5624c83d7750e45c6f9c650a44a2f. 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/GBSMU7349813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1dc69ee5efe31492823170425b35bc18b358249402c1a4c1b3e6e60b0caf132. 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/GBSMU7349814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce3d457e684601112f2ade226613c87792b5953873bf8a418a681e1201adc3f. 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/GBSMU7349815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd6bc0b40026334c6f662822c2f57cb11b9f415aa10fb70e9c9e7e6d106e456. 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/GBSMU7349818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f104cb79944206a65174e292f592bad2697a5e092933fb63949dbad58b9524. 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/GBSMU7349820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0487623b6b737de637b70c2176ccec2cd442623039f2c2afe418a61d7ee2299a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBSMU7349816.