The Blue Stones are a Canadian blues rock duo based in Windsor, Ontario. History In August 2018, The Blue Stones signed a record contract with Entertainment One, where they subsequently announced p
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 0x5300e079045c278fc8141e8d4370cd510611870de63c7f35b458639ee9a49eaf. 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/f625a563-36e5-4d70-ab63-267d4c86b499.json and https://artists.proofprofile.net/proofs/artist/f625a563-36e5-4d70-ab63-267d4c86b499.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 0x164892300a81b0fc3025945dcdf2156f68742a73f516a6e139f7ace4b069f011. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USKO11800761.
(I Can’t Get No) Satisfaction - Live in SiriusXM Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60f8573abd0145fc9bfdcdd2586d91d44e99261ddda87e51487f8b73e8892ae. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:51:57Z), 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/USKO11800956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc22662d66f5bf9159c4fb02f6e711e8860c4dfb5fac5510a3dcc6486ee8c9e. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USKO11800957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451dd08374e83d7977b111e92890cc12d5fd3f10d7663ad64a87237af46d387e. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USKO11800959.
Black Holes (Solid Ground) - Live in SiriusXM Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a63cf0ef9d0314d422d2c760997e78d7bdcd178a22253665883fb320cc9d431. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:26:21Z), 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/USKO11800960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc0e7e4aaeeadf513bcbb49eb5176fe328779a4c8fd14968f4b19b62e798d51. 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/QM99V1902101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4656a5cd4361c16c861b78946f4a1147f0400ce30e58f6e4de91e21e66a9baee. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QM99V1902102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b96bc0899d1a07277800522b2f6585a5af339f4476f6b878848c12139cfeeb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM99V1902103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199cb26a611a098bfc656a0af0f277f51d4286243cf474787a2e605ac78cba76. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:49:13Z), 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/QM99V1902104.
Black Holes (Solid Ground) - Audiotree Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7945d330d8d2a197c959dc574804fa349b31742fcaf24a24e908249a77710f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM99V1902105.
Rolling with the Punches - Audiotree Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6ea0e8487f893a0df9acc8e8a1b5f33288024bab4dc6463009d33b85351c0d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM99V1902106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9abb8292b15a3a8979c3500e682787b26f8277cd3312e5d97aafbb75d38209. 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/CAK471904601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28695a37f453949800c2d7290e5cd12b861fa0439148c575b167b4c314856ea6. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/CAK471904604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571146dbc66e9e41380b479cb2c2c357a3bbc3b4fabecbfeba042650185da03d. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:35:10Z), 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/CAK472004901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79a64ea6c142678a4295ad840c54953fe68bb62284ed212495617505db545c7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:23:15Z), 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/CAK472004902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa845dac531a618d3780ce44a3c863608207efe5d3569b06ac3ea25867dc87234. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAK472004903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab78df107683abcd8bdb887168b25a26ed3107deb3abe3365c8f056da510f43e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:11:43Z), 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/CAK472004904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cc81ed62beb4b98061af961c55e09dfe57ee06fcf4d1d33f756c79774858cc. 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/US5ED2303054.
Stay With Me (The Crystal Method & Future Funk Squad Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c96cd26451f872d2159940b9fb51e9ce23110d073d2ea4d2a96ac8d4b9d18d. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/US5ED2303733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9692c0f430bf613a0a8bad84d2f5c2b1fc81707da2396e30118e0e44c61f79c9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US5ED2303734.