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 0xd1dc9e7b905a0d97e7787e0e57b16e79d4973af3d4f7098ec36410413af0eb96. 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/6d2b187f-4966-485f-8184-64273082dcdd.json and https://artists.proofprofile.net/proofs/artist/6d2b187f-4966-485f-8184-64273082dcdd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Den försvunna ringen - Kapitel 4 (En vän för livet)
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 0x8264b708bdc0f6304b5ecbe4940c1c20da1d3abd35f8fde3ed28311a0b6d03b9. 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/SEBGA2100862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e3784245c583723aadbf4f1f1abb1844a56cde5e3d8e3770d95efde380ddc8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SEBGA2100863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4bdfeb2d30772561b68b6a02187664ab444e3c5d2b65d619e5b99b23b78f83. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SEBGA2100866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57bde613f96a330b0d927ca6330ed4dad05695f14229cb9c635f60a9887b35c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEBGA2100867.
Den försvunna ringen - Kapitel 2 (Rostiga Rut)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dd2768584cbe8504624e7acacf6947a4d67cabcfec5ac522e26ce477459996. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SEBGA2100842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8ef80a4eacf6089fbd6eb9083fe51bbe7a58b0fcfbf04afdf192b299f7aa48. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/SEBGA2100843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7681cd1300b6f208ae6eb716bad46a29482a3b2c570c3adff7e4b1c8e7b7d283. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEBGA2100844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69395bef6196bebe5d4f04a97110087251bc3de819866126fc2fff864bda3ee. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:23:09Z), 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/SEBGA2100845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c886ebde5062548ee01f707e8424f52d5fd0a3ef9b0e299ea98febee6328e6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SEBGA2100847.
Den försvunna ringen - Kapitel 1 (Ett hemsökt hus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38add209bee88d26bf7a27373ec27789398366480030ede83efc8d3aaed5d75. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/SEBGA2100833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd513e969c41840e73a90c02aa8a57ddff739c245a43eb168cf127327ed563b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SEBGA2100834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355984770c72ff19f83552d2a13338e4af0fbb0f9b66c629b033862977e57403. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:32:29Z), 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/SEBGA2100835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246cc4cd5a1ccb0d2946ceae24621d67650553e1e48f744be5eced9baef4f26d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEBGA2100836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc787307fd48adbd7583fba1b1b568ad7899e0cb53912d6eaf24b673e35f593fe. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/SEBGA2100838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2293e32817345eaa997b16902177a811c7fbeab4ead96368e0880311be3c5e4e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SEBGA2100839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f7761775ce56430e0434f70b3caa1f47411f58221b76ea6547a70a1bbf8b59. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SEBGA2100840.
Den försvunna ringen - Kapitel 3 (Svartkobben)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2ac213dccb04b21e9b1dcaa80f75e575c7d2abdca5534e2eb437dba2701089. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:36:37Z), 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/SEBGA2100850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19ec23c6059ce37e0e7c6fd281e5d415a469afb50b7f92605c25566f16988f1. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/SEBGA2100851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe4885116a643fedf14e56af4602246f1d234835c1798b9f2cd9e9d1091cb9b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SEBGA2100852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3be32be9111c3d118475214aaab3356f59ef498a2d8d2a64b88d3b74f3aa26. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SEBGA2100854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a291771ba1ddd548ca3e72f35b9405e757a1dc5fbf419916c77d867648b3204. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/SEBGA2100858.