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 0x897d2f218c5949a7ba01f18d8d065c6b0cd18152968187b01245002da4d3c7a2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a37668e-d974-4abd-b1eb-b44acf485139.json and https://artists.proofprofile.net/proofs/artist/4a37668e-d974-4abd-b1eb-b44acf485139.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 0xaae3080bab7bd88d5ad21474cce837cc73d3b6c6b219d83e95e077cdd8500440. 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/USHM21804742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce295ffcfdc6243552f7d322d3ced29118a1658a75a5919dba9ed028fdc384b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USHM21804743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc53a82aba6ad870b5f25f1b85c41724648581686a3a4210132a84f441eb30c3. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:08:05Z), 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/USHM21804744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c4c44b80778e000eced1bb4abdb309152d338669adae2a87ebdfdd6a383252. 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/USHM21804745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff638739afd8dd6a010401ff3d937fc27bd9ce908a937b0b67f649ce9469670. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:25:46Z), 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/USHM21804746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3061c7345fbb91ef9014d83f1d017b254d2912dac79666dfaca8c47677686a54. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/USHM21804750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ca4af936dc2dd31d5618f127da4bc24a6a97b37da7a3e73b6bcb8a7f515f2a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USHM21804752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b40b8b2c38f3986233d7d4db2fd4ce83d98517b85de40c6b44d216d2d784412. 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/USHM21804753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8a5824212ceff6d9067b315abd519f48d70c67749190ff8c90df77fb0dfae7. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/USHM21804754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2ae1089ed11e1aa2361bb67291e5cb4f858eea802e0e278f21cdda11ce0c8f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM21804755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a9982c352e93c9fa1522c27b6c92715cd535d37060be15cd281ce9bb890d5c. 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/USHM81891283.
Welcome to the War (Epic Orchestral Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd96f464a7e3523f4a13f5f1fdcc6fbedcd7ae307af9212cd68a985f60c94f4. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/USHM81988863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6562de6679a8f8f80a38fed47c0c80cc1ed44d1727205583d6dbf79955b20c. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USCGH2090136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b22a4539df0d11f76a474e801dcfe651064358841ff0db57f37970b739da0d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:10:53Z), 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/USHM92052164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa3b8d8a236cf0989c738fff9dfd8e14a4c557acb9c65de4351496e9c6ab708. 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/USHM92052167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d8d953800529ae58587530d25ea8882cde3d88433fa32c82cb4d34e998db40. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USHM92052169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8293d05f129ec868e7eda44daf7467cc5da0306be715ff37a66f2ba0516da9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHM92052170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f13313fa6e6d8dbf06131d9dfcc8bb22c95fbcb8b8716564166be48a5a0e696. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/USHM92052171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0683a7305135a15b07738068e70a9428826edbbfedad688498c6f4aef2742976. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USHM92052172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622501c7320fbf93e95a19f2ef67571d6ebaf9a1559b6e9aaa52f034acfd6b46. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:29Z), 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/USDY42182199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122af699b71f38190f247d7387fa152fdd4be26095119bbc6230a7c66dd8e5c1. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/USHM92163133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe580c244a5abc79bed0a52a53b9b2a471b393067825bf67cab62111f42a6a379. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:38:25Z), 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/USCGJ2291967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7208818f01f34e329ddc305cae055556d48b8d1a2613af2d6c87a7c88dc874. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/USCGJ2291969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17c34a73810424a31ed2fb135396149a679a73963d613c48fd3a414ff8f08b4. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USDY42213864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e28f0863d441503a25e489b96593b0a17cd90aa3699672bafb67d6792974b6. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USHM92216601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e861b34245238917f1fa98969bb520ae86eb4511549e5fbee73d0c2048319c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFZ32312056.
Guess I'm Gonna Have To Move (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1661f0279b3466c595b79036b889aee8d4d2999b57112ae5e7bfbc7edc37490f. 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/QZHNA2398322.
No Mourners, No Funerals (Cinematic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72077fa2b5501ce04ef274e751d244da236ca0c546148191d432d002270b4993. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/USHM21804749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff638739afd8dd6a010401ff3d937fc27bd9ce908a937b0b67f649ce9469670. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:55:26Z), 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/USHM21804746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4d52f15ab096ba0853abd1fc88373c59874c82f3085308bf291d76a18ad230. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:11:03Z), 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/USHM21804751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3ec900501986f90d1b68e3a8ece231f606e8cd90d000daafe552538e9ca9c8. 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/USHM21804756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d8d953800529ae58587530d25ea8882cde3d88433fa32c82cb4d34e998db40. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USHM92052169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ca4af936dc2dd31d5618f127da4bc24a6a97b37da7a3e73b6bcb8a7f515f2a. 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/USHM21804752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b22a4539df0d11f76a474e801dcfe651064358841ff0db57f37970b739da0d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USHM92052164.
Run Away With Me (from Ace of Swords Productions' Original Short Film, "Crown & Blade")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5330fa65ff2e14bf757599d660e4b1b67de8f30bfbcb48c35d58471c48cb09. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZZ782501802.