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 0xb9e80245613716ec542a34978e588da1663b994220c43fba73cc1e2ae5f0e709. 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/06bb1685-c347-4cb7-8c1f-fcff214b4883.json and https://artists.proofprofile.net/proofs/artist/06bb1685-c347-4cb7-8c1f-fcff214b4883.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 0xf78fc2b3fdb5ecd798b5526adb937d25a0fc083977867815179a228d64b6718b. 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/USWFE2291048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82776bd704c04537391f6263fcf3ac7303abfd44a8046e6a644e39584a75e29a. 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/USWFE2391119.
Surrounded By Holy (Pine Street Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de99b9c0c648711dfa0c5c00c6f942617cde59612887d5ba8e6b29eb20719ef. 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/USWFE2391120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe127bf99b4e065fec13b1fee2201882b10ea5ebb76d37c1a46e97c211283f12. 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/USWFE2391099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa961330a7222680ce9a48cc061fcc26287678e5a2526bd97501801453ca3da9a. 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/UKW3Z2203448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159dd62f9132d8efc029509025b01c0838cd8c5bc526eea5400ab545eba432b3. 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/USWFE2291011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff66df7af7c8590f6a2435819e212a2d2b19586ce429506ddc415283034eff5a. 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/UKW3Z2101569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e88c374dc5a4b2d4582c1c1a14bf5fade340e2203efe71055328e456c447b35. 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/UKW3Z2100527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a9972f16932934dc103bc6f84755ff41405d6cc35e40f784f78e7fec6d8f13. 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/TCAFL2106679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21974e1ed1d9cd9cd691cc590e38182e12c61b11ac8881e2c072fc7bc97469d. 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/US8302300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78fc2b3fdb5ecd798b5526adb937d25a0fc083977867815179a228d64b6718b. 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/USWFE2291048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a6bc67d936f90b3d2b8c360dc0cf98cb294b42c5e2f8831ef63caaa5a08daa. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWFE2190919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179ca61612aaaa2024f96727a69b91038193b1d1405a9d95fb5857bb211edf9a. 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/USWFE2190926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e318dee9e12e132ae844cb76da0841f801a2ae2a56d3111a3fa3d17bf8c5a8. 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/USWFE2190888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e318dee9e12e132ae844cb76da0841f801a2ae2a56d3111a3fa3d17bf8c5a8. 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/USWFE2190888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582b8d5b398f070a8a529acc904784d94db8dde636cf0556fef2f861c7687534. 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/USWFE2190895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa961330a7222680ce9a48cc061fcc26287678e5a2526bd97501801453ca3da9a. 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/UKW3Z2203448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce525837cb54f9cb10b027729cfe799ff205110cbcb5d5fd4277aae25adca5b. 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/UKW3Z2201161.