XAM, or the eXtensible Access Method, is a standard for computer data storage developed by IBM and EMC and maintained by the Storage Networking Industry Association (SNIA). It was ratified as an ANSI
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 0x56acf5af02f8dee1d0b2b3a65cad0ad2841bc4124a7bfcd40898a0b7ef587d5f. Chain 2 (Bitcoin): anchored in block 953696 (2026-06-14T21:45:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/722efdcc-c962-4718-9b45-ddba25b259c5.json and https://artists.proofprofile.net/proofs/artist/722efdcc-c962-4718-9b45-ddba25b259c5.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 0x0f45f4dffec54eff02ce62c30361af864244f82f965b5394e524268f8b88e068. 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/VNA0M1919900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80461b48d31da8454338f400f2c02c2cfd4da918a263694aca3efd84dd5f4153. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/VNA112100240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a80a0b4208ef95c1dfc7a2603d92f4640a2ca4498a2e7ba98d6f5f91b3c9195. 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/VNA112100241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b23ef1f214347f97f1244758f1f476b07ebc12a73bdb824f656024ed2608678. 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/VNA112100243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f3eddf215fa40352e0eaab4661b30b16a209c40a9a3602b73d3a98d0924b6d. 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/VNA112100244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5c7ede090b46cb3d7fbef58bf64b7b972f137c6c93fe083c45ea3e41792534. 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/VNA112100245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69a96732e23beb592f5a130e9b3acb487dc8ce1d9626a895ae0c117463089c5. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/VNA112100246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c1653e79dd484fe03258296fc6643409e96dba3abdd49bd6b165b81775c92d. 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/VNA112100247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf84371a5be93fd13d51d723f77d89ca5cc81c83a37cae3fa86b1808e1fc89f. 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/VNA112100283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fbb5410cf0d324c45d597eb470b038d4bd3a479271a0ede966c46438f0a999. 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/VNA112100284.
DRAMASITA (feat. Seachains, Sidie & Shanhao)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa188a11bcfb449151dc1c769303957199bc70ab64747cb74b9a9548da69606f5. 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/VNA112100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdda2731dcc423edb7138601333b1e6e5c4a01c09a5302e75df661be9ca146e7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/VNA112100286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecbfe0398d875cae1775b998db305ce1cea7d90431df24fed2b1110a4535c67. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/VNA112100338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a442e60bb6a1ca1b52ac2dbba5e990129e0690b8875b61c4877dc78ce333937. 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/VNA112100339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c6faff1c6468b6b5113469c96f65cf77bc0bd3bcd829b6d7cc6f7035575352. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/VNA112100340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02a2f379d2c7740f553f3b79b889083df82569ace919c73bb9cc091edc9fb6b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/VNA112100341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaf91f67150a19b25f8e33e27d58339effe0ad8f289b124e5d09f07e3e4476e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/VNA112100342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a60277909c3f4d0ba6612e7c29d14c63d4160b82b85795ec808f7c6aa09a24. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/VNA0M1910444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e4b6cf5c640523d77b94f66955cf8b38cac414103090be7fec3908d17a8621. 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/FRX452224821.